Psyche is the word the Greeks used to name the three levels of personal consciousness.
It is the equivalent of Anima in Latin, Soul in English and Alma in Spanish. Our personal psyche is the result of eons of evolution, from the single cell to our species as it is right now. Whatever we think, makes molds, which compress the Energy into a pattern. The same happens with our emotions. This is why it is vital to understand all the levels in our psyche to become aware of the patterns that drive us.