Sunyata
This collection of work also explores emptiness. For more clarity I offer this quote: "sunyata, in Buddhist philosophy, the voidness that constitutes ultimate reality; sunyata is seen not as a negation of existence but rather as the undifferentiation out of which all apparent entities, distinctions, and dualities arise...The term sunyata may also be used as a recognition of anattā, or the absence of any self apart from the five skandhas (mental and physical elements of existence)." - https://www.britannica.com/topic/sunyata