Iv felt extremely enlightend on shrooms, acid, or salvia. But i think its how we use the word. I can agree with horror business saying pot can enlighten you and can continue to, and the same with the medicine men and shamans of the ages. But the easter meaning of elightenment is a certain state of being achived after many years ( possibly lifetimes ) of spiritual practice, and is a much more perminant thing than a high.