Memories are made of this

The mechanism and release valve for memory is down to the pressure between the two worlds. Ideas go in as impressions (in-press-ions) - hence trauma providing the deepest and most memorable ones as peace brings nothing special but allows ideas that have built up within, to flow out as in therapy or as spontaneous memories. Think of a sponge. Squash it in your fist and you've got serious 'matter' (Reception of message (memory) or mass-age) - relax it and it expands (flows out) into nothing much (released energy): Transmission (imagination).