Q: What is the difference between me walking in the nature and enlightened person walking?
A: The difference is that you are walking and fully Self-realised being is not walking. An ignorant person is identified with the Here while an Awakened being is One with the Now. If an enlightened being is walking, he or she is walking from the place of not coming, not going and not staying. The difference between you and the Buddha is that you are walking in the forest and Buddha is walking in the Now.