 Just as importantly, Zen maintains that time and space are lived as integrated space-time in the interfusion of a concrete temporalization and spatialization. For example, Dōgen speaks of it as “being-time” (u-ji) to indicate their inseparability; being cannot be apart from time, and time cannot be apart from being, where a being spatializes through the process of temporalization, and where it temporalizes through the process of spatialization. This is a concrete spatialization-temporalization that is lived without any intellectual abstraction, reflecting the Buddhist position that everything, without exception, is impermanent. Zen abhors an intellectual abstraction that merely thinks time and space. This is because the Zen person rides on the rhythm of living nature. That is, “here and now” is one experience (and hence “not two”), and for this reason they should be designated as “here-now.” 