I do know a way around this but you have to be at least mildly aware you are in a dream. I once punched a cement wall in a lucid dream expecting it to crumble to pieces. It did not, because I was expecting a reaction from the environment to the forces I was exerting on it. But there is no environment, and thus no reaction. The wall you arm everything is just the dream. The trick is to visualize the wall exploding when you punch it and then it happens. Or to take it a step further realize that you only need to visualize the wall exploding and it will.
I do know a way around this but you have to be at least mildly aware you are in a dream. I once punched a cement wall in a lucid dream expecting it to crumble to pieces. It did not, because I was expecting a reaction from the environment to the forces I was exerting on it. But there is no environment, and thus no reaction. The wall you arm everything is just the dream. The trick is to visualize the wall exploding when you punch it and then it happens. Or to take it a step further realize that you only need to visualize the wall exploding and it will.
There is no spoon.