A biography of the legendary Indian mathematician Ramanujan.
Ramanujan, who also held a leading position in number theory and partition theory, was a mathematician who lived a short life of 32 years.
His difficult family circumstances and educational environment made him wander as a teenager, but he had hope in 'mathematics'.

In this book, I want to tell the story of a man who possessed both mysterious knowledge and a pure heart.
It is a story of a cultural clash between India and the West, between the Sarangapani household of Kumbakonam in South India, where Ramanujan grew up, and the glittering world of Cambridge, between the neat proofs of the Western mathematical tradition and the mysterious power of Eastern intuition that Ramanujan made dazzling.
What he has accomplished will last forever.
It does not remain in the minds of the general public in the same way as the works of Gandhi, Shakespeare or Bach.
But his thoughts and discoveries will permeate the minds of a few who sympathize with him, and mingle with the intellectual powers of the universe, and there they will become a deep and wide swamp of human knowledge.

--- p.10, p.376