What is spiritual enlightenment? You often hear the term enlightenment in deep spiritual discussions, but it is almost impossible to find anyone who can definitively say what enlightenment, awakening, union, or self-realization actually entails. In fact, many religions differ as to their proposals for the highest state of spiritual attainment -- which is often called salvation, liberation or becoming one with God (union) -- that often do not even include enlightenment, or they may simply recognize it under a different name.
Enlightenment is the direct realization of our self-nature, source essence, or true self. This awakening constitutes directly experiencing the source and essence of reality, the original dimension of equal identity where mind and matter are one because you have found the ultimate underlying, true nature of all things. Enlightenment means to directly, experientially realize that basic substance of cosmic life where matter and consciousness are the same substance, which then consequently opens up various powers and a universal visage.
That transcendental source nature you discover is often called God, Ein Sof, Allah, Brahman, dharmakaya, fundamental nature, Buddha-nature, Tao, Emptiness or Self. Some of the secular designations include Pure Consciousness, pristine awareness, one mind, uncreated light, clear light or infinite universal illumination to denote the fact that It is the ultimate substratum that gives birth to the knowingness of manifest consciousness.
The way to this realization is through meditation and other spiritual practices that teach you to stop clinging to states of consciousness. You must always allow consciousness to arise, but should not cling to thoughts to thus become a perfectly free, effortless, natural and spontaneous individual. As your thoughts quiet down because of this practice, your body's chakras and chi channels will open up (you will experience a kundalini awakening) and you lÓÖ