Word?

Your thoughts are anchored to a greater reality based off of the symbols that you have in your mind. If you don't have symbols that belong to you...you are operating under the auspices of the symbol maker

Possible interpretation:

Basically ... the things we know, symbols (great example is a Stop sign) aren't things that are already understood, it's something that someone has created for us to understand. (Names of colors, Peace signs and the symbolism behind them..)

Say you make a logo for your band ... it didn't mean anything until you gave it meaning. You tell people what it means and what it stands for, and that's what people believe it to be.
So with that quote, symbols of things are given to us at birth...but if you don't have your own meaning of things, you are being controlled by what society has told you to be true.

enjoy.