Hi everyone! ^^

I've just recently got started on lucid dreaming, I've been keeping a dream journal for a while and I'm doing quite well with it despite the small amount of time I've been into all this. However, I've started noticing there's a recurrence with the number 3: for instance, I see three words written down on a piece of paper, there are three people in a room or I see three friends of mine walking down the street. Could this be a dream sign or it has to be something more specific?

Thankss