He studied Abhidharma and Madhyamaka philosophy, and soon began teaching Buddhist canonical texts to several students there.
#* Compendium of Higher Knowledge (Abhidharma Samuccaya) by Asanga
from Nagarjuna he received the radiant light (Sanskrit: prabhasvara) and illusory body (Sanskrit: maya deha, Tib. gyulu) teachings (refer Chakrasamvara Tantra), Lagusamvara tantra, or Heruka Abhidharma);