Birth of Ashwini Devatas, the twin Gods of medicine ....Read On ...

So far Sun has found out that Chaya living with him is only a clone of his wife Sanjna. Sun decides to go to his father-in-law Tvashtru Prajapati's house to bring back Sanjna. https://twitter.com/vschanna/status/1310610664658853893

Sun reaches Tvashtru Prajapati's house and finds that Sanjna is not there. Tvashtru Prajapati learns from Surya, that Sanjna had left him, keeping Chaya in his place. Tvastru Prajapati gently and nicely, tells Sun, that he also shares the blame for Sanjna's act of leaving him.

Tvashtru Prajapati tells Sun, that he can solve this problem and make Sanjna to accept him again, provided he agrees to his solution. Sun agrees for this. Recall that the three problems of Sun were, 'he was too hot, his Shape of width being same as height, & he was too busy'.

Tvashtru Prajapati asked Sun to stand in front of him & to close his eyes. Remember that Tvashtru Prajapati is an accomplished architect himself being the father of Vishwakarma, the divine architect.

Tvashtru Prajapati nicely chisels Sun, by removing parts from his body to make Sun into a perfectly proportioned bodied being. He removes about 50% of his body mass. Since this body mass can't be wasted, it is merged with Sudarshana Chakra, the weapon of Lord Vishnu.

So out of the three problems two r fixed. Sun is now a perfectly proportioned bodied being. And since 50% of the body is removed he is 50% less hot than before. Sun is very happy and finds from his devine eyes that Sanjna is doing tapas by taking the form of a horse in a mountain

Sun also takes the form of a male horse & reaches Sanjna in horse form. Seems their noses touch each other & Sanjna learns that the horse is her husband Sun & he is now less hot & proportionately sized. From the union of these two horses two twins Ashwini Devatas are born.

One of the Ashwini Devata is Dasra and the other is Naastya. They are called Ashwini devatas as they came from Ashwa(horses). They are the Gods of medicine as we are aware.