Enlightenment means rising above thought, not falling back to a level below thought, the level of an animal or a plant. In the enlightened state, you still use your thinking mind when needed, but in a much more focused and effective way than before.

To the ego, the present moment hardly exists. Only past and future are considered important. This total reversal of the truth accounts for the fact that in the ego mode the mind is so dysfunctional. It is always concerned with keeping the past alive, because without it - who are you?