How our learning Bodhicitta in Lamrim can be attributed to 金州大師 (the Buddhist teacher from Sumatra)

Venerable Ru De relates the story here:

When I first knew about 金州大師 (Serlingpa or Dharmakirti), I was fascinated that there was such a great Buddhist teacher that lived in our region of Southeast Asia. And more intrigued to know of the lineage from him to Atisha to Je Tsongkhapa and to the Lamrim text we are reading now.