When someone goes into dreaming of communion, it can either be because their soul wants to reconnect with their significant other or because their life has suddenly turned around.
The experience of receiving communion during sleep reflects human life as a journey between sleep and waking states. This understanding is depicted by those who received instructions while in a deep dreamless state that could be compared to going unconscious during deep slumber.
This ritual of communion in your dream should be viewed as an opportunity to gain some wisdom through reflection rather than becoming caught up in daily routines.