What does it mean to be “enlightened?”
To be “enlightened” means to become a Buddha. It means to be “Awakened” to the meaning of life. It is a spiritual state of Infinite Wisdom and Compassion.
One cannot use logic to define Enlightenment because a finite human being cannot comprehend the Infinite. Thus, to be Enlightened is doing the impossible and can only be understood in a spiritual sense. The historical Shakyamuni Buddha was the first known human being to become a Buddha. The word Buddha is a title that means the Enlightened One.