"We become what we think about."

How do you know it's that way round? Why is it not that we think about what we become?

"We decide which stations to tune into, and THAT determines our reality."

This is a judgement in hindsight, which is just another thought. But in the moments between thoughts, we don't choose our thoughts. Ruper Spira explains it well here: https://youtu.be/tJxL4s4cI8s

It's a 16-minute video, but he talks rather slowly so you can speed it up to 1.5 speed and still understand what he says. Plus he makes the essential point within the first few minutes anyway.