Sirr-i Akbar · The Greatest Secret

Fifty Upaniṣads translated from Sanskrit into Persian at the Mughal court — undertaken, Dārā wrote, because he believed these were the "hidden book" the Qurʾān itself refers to, and that their monotheism and Islam's were the same monotheism.

The confluence, in one volume, and the evidence at his trial. This is the only door on this bench where the meeting of two traditions was deliberate, official, expensive and fatal.