- the reason an engram comes into being and expresses itself on a preclear's body is a lack of communication, the communication has become solid. It expresses itself as an engram, as a facsimile, as a lock, as a secondary. This expression comes about through absence of two-way communication. The moment that one runs two-way communication in upon the process, the spot has a tendency to go back to its original location. This is the phenomenon known as snapping or closing terminals. (PAB 51)