Explain what this means in simple english (especially the part that's bold):
"As for myself, I use the term ideology not for the system of mental representations that characterize the mentality of a "dominant class" (Marx), but rather for the ensemble of cultural reflexes on the part of the dominant mentality, proceeding from any and all classes, lived out unconsciously by the greatest number of people, reflexes that push aside, neturalize and exclude any competing mental representations characteristic of difference or otherness. Ideology takes root in the human spirit through ignorance (spring signs), fear (summer signs), lassitude (autumn signs) and cowardice (winter signs). "