That is the ego which rises and sinks periodically. But you exist always. That which lies beyond the ego is consciousness - the Self.

Meditation helps concentration of the mind. Then the mind is free from thoughts and is in the meditated form.

Peace is your natural state. It is the mind that obstructs the natural state.

If a man considers that he is born, he cannot avoid the fear of death. Let him find out if he has been born or if the Self has any birth. He will discover that the Self always exists, that the body that is born resolves itself into thought and that the emergence of thought is the root of all mischief. Find from where thoughts emerge. Then you will be able to abide in the ever-present inmost Self and be free from the idea of birth or the fear of death.

Realisation is not acquisition of anything new nor is it a new faculty. It is only removal of all camouflage

The world is not outside you.

The more you prune a plant, the more it grows. So too the more you seek to annihilate the ego, the more it will increase. You should seek the root of the ego and destroy it.