The psychological concept of Deja Vu is not seeing something you've seen before, but something similar to what you've seen before. In this way, you may think you've seen something earlier in your dreams when in fact you simply covered something vaguely similar while you were unconscious.
If it's been happening every day in your life, there's also the fact that you probably have confirmation bias; that is, you tend to search for evidence that confirms your beiefs, whether you mean to or not. For example, if I told you that a random number generator really isn't random at all, you will probably be searching for all sorts of patterns in it, even if there really isn't any.
That's my speculation, anyways.
If it's been happening every day in your life, there's also the fact that you probably have confirmation bias; that is, you tend to search for evidence that confirms your beiefs, whether you mean to or not. For example, if I told you that a random number generator really isn't random at all, you will probably be searching for all sorts of patterns in it, even if there really isn't any.
That's my speculation, anyways.