Shentong Madhyamika
Shentong is a philosophical sub-school found in Tibetan Buddhism.
Its adherents generally hold that the nature of mind, the substratum of the mindstream, is "empty" (tong; Wylie: stong) of "other" (shen or zhän; Wylie: gzhan), i.e., empty of all qualities other than an inherent, ineffable nature.
The contrasting Rangtong view of the followers of Prasaṅgika Madhyamaka is that all phenomena are unequivocally empty of self-nature, without positing anything beyond that.
According to a Shentongpa (proponent of Shentong), the emptiness of ultimate reality should not be characterized in the same way as the emptiness of apparent phenomena because it is prabhāsvara-saṃtāna, or "clear light mental continuum," endowed with limitless Buddha qualities.
It is empty of all that is false, not empty of the limitless Buddha qualities that are its innate nature.