“The paradox is that, while a concern with past and future is obviously central to psychological functioning, to behave as though one were indeed in the past or future, as many do, pollutes the lively possibilities of existence.” PastExistencePossibilityConcernPsychologicalBehaveParadoxLively Book:Gestalt therapy integrated: contours of theory and practice Source: Gestalt therapy integrated: contours of theory and practice