Why does Moshe the Beadle he reveal to you Elizer about his trip?

Moshe the Beadle reveals his story to Eliezer as a warning about the atrocities he witnessed during his deportation and as a way to share his experiences so that others may learn from them. He wants Eliezer to understand and prepare for the horrors that may lie ahead, and he feels a responsibility to share his truth with someone who may not have experienced it yet.