Buddha is enlightened while he was meditating under a Bodhi tree. Not while he was reading. Not while he is walking. Not while he is talking or listening.
Perhaps, the key to enlightenment is sitting or meditation.
Perhaps, a solid understanding and technique, as well as relentless dedication and sacrifice, true abandonment of ego, absolute and constant detachment from all thoughts and forms, is just the beginning.
In Chan, we were taught “Purity, Wisdom, Fulfillment and Enlightenment.”
The first two words can be combined into just “detach from all forms”. The second two words can be combined into just “in sync with Buddha”.
Then these last two phrase can be just “Be Buddha”. Any teaching short of this state of being, is partial and incomplete.
“Be Buddha” is not a mental state of attainment or visualization. Be Buddha is a complete, total, integrated being of body, mind and spirit. Or as our Teacher would say, the body, mind and spirit of all six trillion cells in everyone of us.
When they are all enlightened, then we are.