ཕྱལ (phyal, “flat”) + nominalisation suffix པ (pa). The sense is that the flatness is the terrain of their view as well as their conduct, they neither seek to rise through merit, nor fear falling into non-human lives and hells through unmeritorious activity.
ཕྱལ་པ (phyal pa)
- Norbu, Namkhai (2001). The Precious Vase: Instructions on the Base of Santi Maha Sangha. Shang Shung Edizioni. Second revised edition. p. 103. (Translated from the Tibetan, edited and annotated by Adriano Clemente with the help of the author. Translated from Italian into English by Andy Lukianowicz.). This is a restricted text, p.25