The basic strategy of some on this sub seems to be "well if I believe in my own power enough, then my unconventional perceptions are true"
Hopefully not, but perhaps you are right. However that's like thinking you can simply will things to happen or by "doing" things. But it's not quite like that. Like I said in an earlier post, it's more like triggering patterns which then arise in and shape subsequent experience:
Experiences leave traces which in-form subsequent experiences. (Leave shapes on your "experiential filter".)
Thoughts also leave traces, as in-form-ation, affecting subsequent experiences. (You can use this deliberately.)
Synchronicity is the name for the experiential patterns which result.
This is one reason you should treat the subjective environment (as it were) as being almost mechanical and unintelligent in nature. Only you are the intelligence.
You are basically you experiencing the state of your own mind, via the senses. Yes, you might think of it a bit like a mirror - or better, that your mind is a perceptual filter.
So, not much good for "messages" since you'll just be seeing what you've been thinking and experiencing, as residual indentations on your filter - except that you might get some insight into things you are thinking in the background that you're not aware of.
So, if you spend 20 minutes today imagining owls, as vividly as you can, as if they were in the room with you... you'll spend the next week encountering lots of owls. It's as if you have created an "owl-shaped hole" in your perceptual filter, and the "infinite light of creation" (or whatever) now shines through it, giving you owl-shaped experiences.
Better to use the technique deliberately. You might not be into owls, but you are probably into something, something that would make you happier? Deliberately spend some time vividly imagining that, so that you are more likely to encounter/notice it.
So, if you spend 20 minutes today imagining owls, as vividly as you can, as if they were in the room with you... you'll spend the next week encountering lots of owls. It's as if you have created an "owl-shaped hole" in your perceptual filter, and the "infinite light of creation" (or whatever) now shines through it, giving you owl-shaped experiences.