The concept of evolution as envisaged and developed by modern scientists will be reviewed. The concept of consciousness and its evolution in humans as enlightenment and self-realization as experienced and expressed in the Upanishads, Vedanta, Yoga Sutras, Bhakti Sutras and in the experiences and expressions of modern spiritual seers will be critically analyzed. And self-realization in individual leading one to and getting established in jeevanmukta state will be discussed. The possible irreversible physicochemical nature and implications of such consciousness evolution (...) in humans will be discussed. (shrink)