Can a person control their thoughts? (one last thought)

I forgot to say what I think is our main ability not to be swept away in our thoughts. - Once a person can be more of an observer that they are in deed the thinker, the one who is actually being the receptacle for thought and starts to see that they are the arbiter of what comes to be as "your own" - "personal thoughts" (contaminated a lower version of what we referred to as original thought) ..We can create a small, albeit very small space to notice a thought and turn our attention to another direction - other thoughts will come. If you become stuck and other thoughts don't immediately come? Don't worry they will. Wait it out a bit - the reservoir where thought comes from is nver dry, they will always come,