You cannot become what you did not perceive

The jury is still out on this topic title and time will tell if the assertions stated here will hold its weight in gold or will be discarded.
Here is a thought. How can you become something that you did not perceive?
It would be different if we allowed the random acts of fate or nature to occur and steer you in the required direction but then again; you would still need to be made aware of exactly where your journey would lead you to. If not the journey then at least the final destination.

Truth be told; how can you become something that your mind never pictures at some point? How can you become a teacher, scientist, doctor, lawyer without having first pondered on any of these career paths?

Even if the path was foisted on you there is a choice and point when you mind embraces the path and begins to perceive the possibility of the new path.

We cannot become something that we did not at some point perceive. It is not the nature of things.