Astral Journey: Astral Journey and the Astral Body

Astral Journey and the Astral Body
You first separate yourself from the body; then you identify yourself with the mind, and then you function on the mental plane, with this fine body just as you do on this physical plane. Through concentration, you rise above the body-consciousness; through meditation, you rise above mind; and finally through Samadhi, you realize your spiritual nature. These are three important exercises of Antaranga Sadhana in the achievements of Kaivalya, the final beautitude.

Astral Journey

Astral projection is a form of out of body experience that sometimes occurs during lucid dreaming during deep meditation or at times of crisis. The soul moves into an astral body (or "etheric double"), which moves free of the physical body in a parallel world known as the astral plane. Astral Travel is spoken about in may mystical texts and has more recently been studied by scientists investigating reports of people who have has a near death experience.
This happens when the body is at rest and it is beating at theta frequency