good topic.
in terms of the attemptive 'definition' of enlightenment, i remember reading a buddhist describe it as being true compassion and wisdom.
so the idea of 'being enlightened' would then entitle one's self, or personal ego identity, to 'hold' this state of pure compassion and wisdom. i've also heard it said in buddhist text that enlightenment is not something one can gain, because it is in the core of each individual.
this being said, i feel there's quite a difference between the act of 'experiencing enlightenment' and 'becoming enlightened'.
recently i was reading something by a dao sage and he said that (maybe lao tzu) wisdom is understanding that you know nothing. if this is the case, then wisdom is attained through pure humbling.
adding a god into this senario makes it all a bit more metaphorical. most prominent religions encorporate a sense of god living inside of everyone, in some sense or another. in hindu terms there are three chakras (tien derre? sp) which are directly connected to god, the third eye, the solar plexus, and the heart. the metaphorical representations of these chakras give support to these being 'infinite' sources of energy, the third eye being one's understanding and interpretive output, the heart being one's empathetic connectedness to one's surroundings and the solar plexus being the point where the energy is drawn in.
in christian terms the holy spirit is said to live in everyone, and as stated above, buddhist believe the enlightenment is at the core of one's self not out somewhere at the end of an adventure.
considering all of this as being a root definition of enlightenment....i picture the process of becoming enlightened is to allow one's 'inner god' to shown through the body and being. (metaphorical the inner god could be an inner light, and thus enlightenment entails allowing one's internal pure illuminatino to flow out of them) this coincides the buddhist, daoist and hindu ideals of 'enlightenent' and the potentials and effects of achieving such.
the illumination of one's chakras and the opening of energy passageways in the body ultimately leads to a more full and 'bright' aura, or energy emmision. physically in terms of well-being, and energetically spiritual onensess.
the development or purification of one's energy (or even habits, physically speaking), be it through psychedelics, meditation, fasting etc, ultimately will aim one towards an 'enlightenment' of mental and energetic processes. the true quest of purification and realization, regardless of how long it takes, will force one's ego into a particular development through realizations. by this occurance, as one's development purifies, one's self and understanding of one's development and one's surroundings purifies.
physically speaking as we grow and learn we become smarter, seeing as though this process of growth is inevitable on all levels, what one considers an unnecessary habit, or an unnecessary personality trait, one 'leaves behind' or grows past it. this is how our energy functions in more subtle ways, once one realizes a problematic area (habit or lack of understaing) one moves towards fixing the problem.
the quest for enlightenment is the quest to purify and neutralize one's self. if god or enlightenmet is dwelling in the individuals to start with. so the self who is enlightened is the self who can allow 'god' or 'truth' to shown through from the core of his being, and thus nothing is held at all, and enlightenment becomes the tangible immaterial or the material intangible (the nothingness in everything and vice versa in dao terms). only an illumation, of truth which shows through one's self, and thus one's actions. an illumination which was always there being covered and smothered by one's self and one's actions.