I don't think that becoming a genius is the right mindset.

Brilliancy isn't more complex or more complicat than the normal thinking. It is simpler. It is about doing less and let things become reality. It is not about doing more.
Thought are like water, you have to let them flow freely.
Unfortunately that is not easy because doing less is totally different from doing nothing.
Nothing would mean stopping the water totally.
So you need a focus point for your thoughts.
And meditating about Images is a good one.

But the right mindset is far more important. So you can't "become" Genius the easy way with doing something whatever it is Imagestreaming or something else as long as you aren't a person with the right mindset.

We are human beings and not human doings so we can't grow just by doing something.