You just really have to expect it to work. In a dream when doing an RC or something else, you shouldn't really say, for example "I will see if I will be able to spawn that car" or "I will try to push my finger through my hand". You should not think of you failing. You should just spawn it, just believe it will appear. Or not try to push your finger through your hand, but just push it through. I am not good at explaining/teaching things, but I hope you understood what I had in mind.