1

nothingness is nonexistent so there is the absurdity of referring to it as a functioning thing and an existing thing. also from the pov of substantial causes, mental factors such as intention are not main minds ie. consciousness/mind itself, meaning they cannot function as substantial cause for the production of a mind.


1

The origin of this whole line of reasoning in Tibetan Buddhism comes from Dharmakirti's Pramanavarttika. There have been extensive commentaries and teachings on this from numerous great masters of Tibetan Buddhism. You can find commentaries on it from all the extant schools of Tibetan Buddhism. For an extensive set of discussions on this line of reasoning ...


Only top voted, non community-wiki answers of a minimum length are eligible