Trishtup in somayaaga : Trishtup chhanda is associated with tapas/penances, summer season, seeing with a difference, thunderbolt, efficiency etc. The procedure of somayaaga throws much light on the nature of trishtup. Regarding efficiency, in the first stage of somayaaga, there is a fire called the fire of south, the fire of efficiency. The presiding deity of this fire is Nala Naishadha. From puraanic literature, we are familiar that king Nala does not know the art of gambling, but he is perfect in the art of tending horses. He loses in the game of gambling. Dr. Lakshmi Narayana Dhoot has rightly pointed out that what is gambling in mythology, that is the play of dice/chance in nature. In nature, nothing is definite, everything is a chance. So, in the first stage of somayaaga, chance is dominant. When one goes to the second stage of somayaaga, there this chance changes into more definiteness. There, south direction is the direction of efficiency, and as a proof of this, in this direction, the yaaga performer gives his senses to the priests as fee for yaaga and the priests return his senses to him after making these more efficient. Moreover, it seems that the south of first stage gets changed into north of second stage. In north, there is plenty of definiteness. Regarding south, there is famous story of demon king Raavana who was killed by lord Raama. The word Raavana itself seems to be symbolic of ‘rava’, the noise. Therefore, the main aspect of south direction is to increase efficiency by decrease in noise. The other name of Raavana is Dashaanana, one who is having 10 heads. The earlier form of word ‘dasha’/ten is ‘daksha’, efficiency. The game of gambling is also called Aksha vidya/the play of dice. This aksha symbolizes in modern sciences how the energy of the universe can be made to flow through a particular object. For example, take iron which makes all the magnetic forces around itself flow through it. When one is able to form an aksha, he can use it to plough a barren field. It seems that this act is symbolized in mythology by eyes, which are also called Akshi. Not only this, one is supposed to draw his eyes for inward seeing. This is symbolized in somayaaga by blindfolding a priest. How summer season can be correlated with trishtup, is yet to be investigated properly.

Jagati in Somayaaga : Jagati chhanda has been associated with rainy season, 3^rd session of somayaaga, west direction, initiation, ears etc. Let us start from the gaarhpatya/home fire in the first stage. The presiding deity of this fire is god Yama, the ruler of hell. This home fire gets converted in the second stage into a place of sitting of priests. This place is also equivalent to stomach in the body. The duty of Yama is to rectify the noise which has cropped up while performing a work, to decrease the entropy of noise. The west direction has been associated with roasting the seeds of action, so that these may not fructify in future. How this can be done, is only a guess. May be this can be done by the act of initiation where a person sits in the womb of his preceptors, like in the womb of a mother. Thus he is protected from all sides. Before initiation, one is supposed to clean all his hair. This may mean that his aspiration for become introvert should be so strong that even hair do not grow, just as in the chemotherapy in the treatment of cancer where all hair fall. Moreover, it seems that one is supposed to leave the cruelty and become non- cruel. In puraanic stories of Akruura, it has been stated that rain takes place wherever he goes. Therefore, when rainy season is associated with jagati chhanda, it may mean that one has to leave cruelty to get rain of bliss. And this cruelty is nothing but that noise which has been generated while performing a work.  When jagati chhanda is said to be associated with ears, it may mean that at this stage, the direct flow of inner voice has stopped and one has to do with whatever has been heard earlier, or whatever heard by others. This is called Shruti and Smriti. The association of Jagati with the third session of somayaaga is justified on this basis because in this session, the yaaga is completed from the leftover of earlier two sessions. And in this third session, curd is also mixed with leftover soma. The curd may be symbolic of an enzyme which may make it easier to digest the leftover.