This monograph is a study of the Rgyal ba'i dben gnas rwa sgreng gi bshad pa nyi ma'i 'od zer (Rays of the Sun: A Statement about Rwa sgreng Monastery, Hermitage of the Victor), which is a newly discovered hand-written manuscript from the Fifth Dalai Lama's private library at 'Bras spungs monastery, Lhasa. It is the first known work devoted solely to Rwa sgreng monastery, the mother monastery of the Bka' gdams school founded by 'Brom ston Rgyal ba'i 'byung gnas (1005-1064) in 1057 after the death of his master Atiśa (982-1054).

The Bka' gdams school no longer exists, but...