Previous ideals and values undermine themselves and collapse into nothing precisely as a result of the effort to make them consummate and exhaustive. - Keiji Nishitani

On the one hand, nihilism is a problem that transcends time and space and is rooted in the essence of human being, an existential problem in which the being of the self is revealed to the self itself as something groundless. On the other hand, it is a historical and social phenomenon, an object of the study of history. The phenomenon of nihilism shows that our historical life has lost its ground as objective spirit, that the value system which supports this life has broken down, and that the entirety of social and historical life has loosened itself from its foundations. Nihilism is a sign of the collapse of the social order externally and of spiritual decay internally - and as such signifies a time of great upheaval. Viewed in this way, one might say that it is a general phenomenon that occurs from time to time in the course of history.

All things that are in the world are linked together, one way or the other. Not a single thing comes into being without some relationship to every other thing. Scientific intellect thinks here in terms of natural laws of necessary causality; mythico-poetic imagination perceives an organic, living connection; philosophic reason contemplates an absolute One. But on a more essential level, a system of circuminsession has to be seen here, according to which, on the field of Śūnyatā, all things are in a process of becoming master and servant to one another. In this system, each thing is itself in not being itself, and is not itself in being itself. Its being is illusion in its truth and truth in its illusion. This may sound strange the first time one hears it, but in fact it enables us for the first time to conceive of a force by virtue of which all things are gathered together and brought into relationship with one another, a force which, since ancient times, has gone by the name of "nature" (physis).

In the religiosity of Zen Buddhism, demythologization of the mythical and existentialization of the scientific belong to one and the same process.