Bhava Lord Sambandha
We often need to identify the relationship between two lords to determine whether or not the people ruled by those Bhavas will have an inimical or amicable relationships
See the following dictum from the classics-
Jataka Tattva 3.6: When there is enmity between the lords of the 1st and 10th house or when the 10th lord is placed in the 6th house either from the lagna or the lagna lord, the father will prove as enemy to the native.
Jataka Tattva 3.9: If the lords of the 5th and the 1st are mutually inimical, of if the lord of the 5th occupies the 6th house and be aspected by the lagna lord, the native’s son will be inimical towards him.
One needs to reflect over these statements and determine whether or not some of the conditions are possible? For instance can the lagna lord and the 5th lord ever be inimical towards each other? Similarly can the lord and the 7th lord ever be friendly? When we start questioning the obvious, the knowledge will dawn on us. We will start understanding the true purport of these statement.
Although we may like to believe that all the lagnas are equally created and all have the same changes of getting good and bad pertaining to various Bhava results, it is not so. Different Lagnas are hardwired to experience more positive results in certain area than the others. Similarly, more negative results in certain other areas. One simple rule is to look the the 6th lord. The native will always have some or other challenges pertaining to the natural significations of the 6th lord. Is the the nature of things! The root of all the conflicts in this life is in the 6th house, so why would you leave out the natural significations of the 6th lord?
Take the example of Taurus and Sagittarius Lagna where 6th lord is Venus. These people will have some or other problems pertaining to Venus related matters - relationship, marriage, sex etc. Because when Venus gets strong, it will also bring forth some of the functional nature. For Taurus Lagna, Venus is the Lagna lord, but does the native gets spared from the 6th lordship of Venus? In fact, the Lagna lordship causes the native to be baffled and troubled very easily due to these relationship matters as Lagna is something, which the native identifies very intimately, it is very personal, very own. It is likely that such native need to fight in the matters of relationship! And the fight it not casual, it is something that the native wants to win under any circumstances.
However, for Sagittarius, things are a bit different because Jupiter is inimical to Venus. Jupiter and Venus are actually mutual enemies, through they don't fight with physical weapons, but with their wit! Sagittarius Lagna people don't get too personal in the challenges pertaining to relationship matters, but keep some distance and have a kind of escapist attitude. For this Lagna, Venus is also the 11th lord, so Venus has the ability to boost income. But with each gain, there is also some struggle.
One should understand these natural propensities of different lagnas before moving ahead with the prediction based on placement of Grahas in different bhavas, Bhava lords in different bhavas or various yogas and aspects. If you know palmistry, you will appreciate this fact as before going into Chieromancy (study of lines) one needs to study Chierognomy (study of structure of hands).
Having know the importance of the understanding of different lagnas, lets see the relationship of Lagnesha with various bhava lords for different lagnas.
Lagna and Kendra: We often say that placemnet of the Lagna lord in a Kendra is a blessing as this makes the native action oriented. The Kendra brings much support in life to manifest the karma, however, is that smooth always? The results are different for different Lagnas. For each Lagna, there are 4 kendras, inclusive of the Lagna. Among this four, Lagna is always a supportive Kendra. However, among the remaining 3, only 1 is friend Kendra and the remaining 2 are inimical Kendra. Among these 2 inimical Kendras, 7th is always inimical.
For Odd signs, the 4th Kendra is always friendly while 10th is always inimical. On the other hand, for even signs, the 10th Kendra is always friendly while 4th is inimical.
However, there are some exceptions. For instance for Ar Lagna, 10H although is ruled by inimical Saturn, it is the exaltation sign. On the other hand, 4th is ruled by a friend but is its debilitation sign.
When the Lagna lord is placed in a friendly Kendra, the native is supported by many from outside. While when it is placed in an inimical Kendra, the native has to face many obstacles which he has to overcome to attain success. But success is promised in all cases. It is also true that when the lagna lord is placed in a inimical Kendra, the native is willing to put that extra effort always, thus making him highly enterprising. In the friendly Kendra, the supportive environment can make the native complascent.
Lagna and the Kona: For all the Lagnas, the Konas 5th and the 9th are friends. Hence, it is not possible for Lagnesha to be placed in an inimical sign in a Kona. This is why, one can't be inimical towards one's past and future. These are the 3 important houses that determine our past, present and future and has a strong say on which part of life should we attain happiness and success.
Lagna and the 2nd/ 12th House: For Even sign Lagnas, these lords are mutual friends. Hence for these lagnas association of these lords can give high class dhanayoga. For the odd sign lagnas, they are mutual enemies, so their association will need external support such as influence of other benefics, or dhanakaraka Jupiter to give rise to a strong Dhana yoga.
12th house is just the reverse of the 2nd house i.e., for odd signs, the 12th house is friendly while for even signs, the 12th house is inimical. When the Lagnesha is placed in the 12th house, the native can develop high spirituality and also become spendthrift. When do you expect good results and when bad? For Aries Lagna, Mars's placement in the 12th- is that good for spirituality? Will that make the person spendthrift? When the Lagna is placed in a friendly 12th, the native will be protected from financial distress and will calmly move towards the path of renunciation. While Lagnesha in inimical 12th gives spirituality but after much struggle in life; after the native loses all that he loves! Also, the native is heavily troubled by financial challenges.
Lagna and the 3rd / 11th House: The Lagna and the 3rd always have inimical relationship. It can be mutually inimical or only one sided depends on different lagnas. For instance for Cancer Lagna, the Lagna lord Moon is friendly towards 3rd lord Mercury, while the 3rd lord Mercury is inimical towards the Lagna. Now we know there is always some kind of competition with siblings which is called siblings rivalry and need some extra support to have amicable relationship between the siblings.
Like the 3rd house, the 11th house can never be friendly towards the Lagna. 11th is the house of elder siblings and perhaps is also the cause of siblings rivalry. However, most classics say that the placement of the Lagna lord in in the 11th house give very good results, perhaps because, the 11th is the house of gain. The point here is, the gain comes after putting much effort. i.e., the native becomes successful with his self effort and he is not much helped by others. The good results usually accrue if there is beneficial aspects.
Lagna and the 6th/ 8th house: For odd signs, the 6th house is always inimical while for even signs, the 6th house is friendly. Now when the Lagna lord is placed in the 6th house in a friendly sign, should it be treated equally to when it is placed in an inimical sign? No, thinking logically, the results are bound to be different. We are aware that Lagna lord placed in the 6th house can give excruciating intelligence i.e., the native is a Dhimantah! Will it be true if the Lagna lord is placed in an inimical sign? Even if the answer is yes, the native with such combination has to fight many battles as the lagna lord has gone to the house of its enemy. How about fighting diseases?
8th house is opposite of 6th house i.e., for odd signs, the 8th house is always friendly while for even signs, the 8th house is inimical. Thus for odd signs, the placement of the Lagnesha in the 8th house can give all the best qualities of the 8th house i.e., research mindedness, understanding of high philosophy of life and death, increase if longevity etc. However, when the Lagnesha is placed in inimical 8th house, say for Cancer Lagna, Moon in Aquarius, the native suffers reduction in longevity, many diseases and many financial difficulties. The whole life, the native lives in some kind of fear or anxiety!
Now coming back to the dictum of Jataka Tattva, how can the Lagnesha and 5th lord be mutually inimical? Here, we realize that the relationship mentioned here are not naisargika sambandha but tatkalika sambandha. In tatkalika sambandha, the Graha B becomes inimical towards Graha A, when Graha B is placed in 5th to 9th or conjoined with Graha A. Among 5th to 9th 6th/8th relationship is worse. The 5th, 7th and 9th are not inimical as the Lagnesha and the 5th lords are natural friends. Also, conjunction will make their relationship much stronger.
Concluding my thoughts, when we analyze a horoscope, we need to look carefully at the natural propensities of different Lagnas and the natural sambandha of the Lagna lord (or other houses) with the other houses.