Prism of thoughts

We may possibly exist through the prism of our thoughts - that is, we are naught but the extent of our cognitive facilities.

What may have limited that capability of mine (ergo, the spectrum of all life) is fear - emotions mold our thinking; essentially, rationality is the final by-product that comes only *after* feelings are processed: thus, we live what we feel. Fear is a constrictor - it naturally prevents and makes the organism fundamentally worry about its existence, and as such fear restricts the thinking processes solely to 'survival'. This is why I seem to have revolving tunnels of the same kind of thoughts (that in turn translate into the same set of 'expressive' actions [whether directed at something or simply moving]). In evolutionary terms, is everything directed at initially the development of feelings, and ultimately thoughts? Why is there necessarily this duality, or could this possibly be the illusion of the ego (with the separation due to logic being more resonate with individual pride)?

Could the result of these be a predictor of determinism?

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