The Brhat Samhita Of Varaha Mihira Varahamihira -

He opened a different section of the Brhat Samhita : Chapter 3, On Meteors and Planetary Conjunctions . His calculations showed that Jupiter had entered the constellation of Rohini in the previous month, and Saturn was moving into the sign of the water-jar (Kumbha). According to the 300 shlokas he had personally verified from the sage Parāśara, this combination promised a delayed but violent monsoon—if a certain northern wind arose.

He smiled. “The Vāyu-pitr wind. The rain’s father.” the brhat samhita of varaha mihira varahamihira

That night, Varāhamihira climbed the stone steps of the Ujjain observatory. He watched the cirrus clouds, which the Brhat Samhita called ‘tāra-patha’ —the path of stars. They were moving east to west, but high, thin. Then, just before dawn, he felt it: a cold gust from the north-west. He opened a different section of the Brhat

Varāhamihira, a man in his fifties with sharp, patient eyes and a turban wrapped high over his brow, bowed. “Your Majesty, the Brhat Samhita does not ‘claim.’ It records. It observes. It calculates.” He smiled

Varāhamihira stood on the observatory roof. He felt the first drop, then a second. Then the heavens tore open.

The King, amused, agreed.