Does the art of not thinking, like in meditation, open the doors for Both negativity and positivity to be manifested in one's life?

Is it a matter of being aware of the negativity but only accepting the positivity? Does focusing more on positivity while not in meditation bring about more positivity*,* especially when not expecting it? I recently read a Reddit comment that said the person shifted their focus from trying to find their car keys, and then their car keys appeared.

If that's the case, is meditation the opportunity to switch from focusing on the positive to focusing on nothing so that the positive can manifest?

I like what Abraham and Esther say about our thoughts going into escrow. I believe there needs to be a period of time where we aren't throwing anything, hopefully positive, into escrow and just let it happen by not thinking. I could be overthinking the Law of Attraction, but the comment about the car keys seems to be opposite of what Law of Attraction teaches. Maybe it does align, because the thought of finding the car keys was ignited and had a starting point, it just needed to sit in escrow while the person's focus shifted. What do we think, or not think lol? I also maybe understand that sending questioning into the Universe will only have the Universe sending questioning back, and nothing will be fulfilled.