 In living this integrated, living space-time, Zen does not understand time to be a quantifiable (the move prepared by Aristotle’s understanding of time as the measurement between before and after) and homogeneously punctuated unit (i.e., the clock time of natural science). Nor does it conceive of it as a linear progression from past to future through the present, although it does not exclude them insofar as they are useful for everyday life. The negation of the linear idea of time also includes the negation of the idea of time as symmetrical and reversible, because in the Zen experience of space-time, a teleological intentionality, an “in order that,” is absent. Yet Zen does not accept time as a “fleeting image of eternity” (as in Plato). Zen understands time to be living. According to Zen, theories of time built through conceptual abstraction are distanced and separate from the immediacy of “here-now.” 