This is the layer of the aura or frequency band located just beyond the mental level. It is termed "causal" because, according to esotericism, it carries the Self's (Soul or Spirit) fundamental intentionality to be, and this is the ultimate cause of our existence. Seen clairvoyantly, the causal body is pale and ethereal, with iridescent colors like those of a soap bubble. At this level, the Self is not constrained by the usual limits of time and space and causality, but is able to experience the universality of life and to perceive meanings and interrelationships which are normally not available to us. This level does not disintegrate after the death of the physical body as the astral and mental bodies eventually do. It persists from life to life.