To "let someone go" can have a couple of different meanings: It can mean allowing them to leave (as in Moses asking Pharaoh to "let my people go") or it can mean releasing someone from a physical hold (Jacob, wrestling with the angel, said he wouldn't let him go until the angel blessed him). In both senses the meaning is a desire on one hand for a new spiritual state, and on the other a reluctance to allow that change to take place. As with most verbs, the precise meaning depends on context.

(Odkazy: Arcana Coelestia 3973, 4283, 4284, 4290, 4720, 5843, 6517, 6912, 7037, 7501, 7707, 9061)