When the energy of an imprint is blocked, we have little access to ourselves. This also suggests why depression often involves being sexless, as the system is in the energy conservation mode - parasympathetic. All energy is suppressed. The underlying pain has demanded that so much energy be expended in repression that there is little left over for other things.
And the memory endures, keeping the system off balance where the parasympathetic system is dominant.
Note: See Parasympathetic nervous system for explanation.