I saw the figure 7 in black

Dream. I’m giving some kind of lecture to grad students with not fully prepared slides. There are slides that I made some time ago and have forgotten whe I meant by them. But what feels important is an image that’s just the number “7”, in black, sans serif font, against a plain white background; this is meant to suggest an unequivocal decision, something that just is a certain way, without ambiguity. When I woke up this morning I found this dream and its central image puzzling. But it’s actually very transparent. I had to decide when to have surgery to repair my torn rotator cuff. Oh did I forget to mention that when I knocked my shoulder out of the socket I also tore my rotator cuff? So it has transpired. Apparently this happens a lot. I worried a lot over the optimal date to schedule the surgery. Eventually I decided on August 7. The other option was today.