In the sense that our mind is always active and producing energy and that energy manifests something then yes absolutely, we get things without having "consciously" manifested them. Usually these things are what is generally floating around in the air so to speak, we unconsciously absorb the idea and that idea automatically manifests itself, so much easier because the mental is occupied with other things. This explains the phenomena of crowd excitement, it just takes one person who is greatly admired for some reason or another, to express an idea and that idea will quickly "catch on" and flow through the crowd like wildfire. This explains the phenomenon of idols.

This is why it's so important to "be aware" of the thoughts flowing through your mind and filter those thoughts coming from "elsewhere" and those thoughts consciously conceived. In short if you don't decide what you want, some else will do it for you and will consciously or unconsciously impose their ideas on you.

happy easter