Enlightenment is having insight. It also means open-mindedness, refinement, improvement, polished, finesse etc. Being enlightened will protect you in all your endeavors. It involves being lead by the spirit, Rom 8:14. Paul prayed that the church will be enlightened, Eph 1:18.
This enlightenment will be instantaneous, spontaneous and continuous where you will have access to paradise. Like on the day of Pentecost when the Holy spirit came as a mighty rushing wind (instantaneous) without warning (spontaneous) and has remained with us (continuous), Acts2.
A real experience can only happen when we yield our minds to the Holy Spirit.