Upadesamrta

Sri Rupa Prabhu, who learned this perfectly from the divine mouth of the Lord and understood its purport, wrote a simple, jewel-like book explaining it which is a mine of good fortune for the soul and the greatest of gems — a jewel of divine love. He personally gave his followers this necklace meant to be worn by all devotees of Sri Gaura known as the Upadesamrta, which is the essence of all nectarean instructions.

— books Sri Upadesamrta / Verse One