The problem here is that the mind works by mental tricks. Just because you don't think of them as tricks doesn't mean they aren't.

Don't you think it would be better to select the tricks that operate your brain by intention rather than by accident?

I don't necessarily agree to saying that the mind works by mental tricks, but that's mostly semantics. I do think it's generally better to operate by intention, and I also think that those intentions should be based on sound values and rigid beliefs and dreams.