, especially Zen
) is the practice of avoiding mental constructs during daily life. That is, other than while engaged in meditation
). Some schools of Buddhism
consider Apratisthita Nirvana
("non-abiding cessation") to be the highest form of Buddhahood
The Diamond Sutra, a classic Buddhist text, is primarily concerned with the idea of non-abidance. The concept seems to have originated with the first century Indian Buddhist philosopher Nagarjuna, whose version of Śūnyatā, or emptiness, entails that entities neither exist, nor do they not exist.