A letter from March 4th, 2021

Dear Future Me, I got a weird dream today. I just remembered, in my dream there this guy that I can't even remember. He was running closer to me with tears stream down to his face while saying, "Thank goodness! you finally came back!" He said, but I can't seem to remember who he was but I could feel that he was a bit familiar to me. What was that? I suddenly remember about this dream of mine that I traveled back in time by 10 years I think? I can't find a connection between that travel and this dream. I replied to him, "what are you talking about? I don't remember who you are." he even cried even more! and... besides that young man clinging and crying to me, there were still 3 men left and those, I can't see their faces only their shadows. what does this even mean? what "come back" is that young man talking about? why is he crying? and who is that man behind him?