MENTAL CONCENTRATION AND AWARENESS.
It may seem counterintuitive but being aware of your earthly and astral presence at the same time helps shield you from energy black hole.
2) Control your thoughts
An uncontrolled mind can breed paranoia and fear which literally magnetizes negative astral entities to you. Whatever repetitive thoughts of fear you have playing through your mind will manifest in one form or another during an experience in the astral planes or out of body. It will either manifest in the form of a shadow self, a negative astral entity, or a landscape.
Remember that spirits of darkness feed off of the energy of fear. Practice meditation in your waking life to learn how to develop a new relationship to your mind and experience yourself as something beyond your thought stream. Learn how to ground yourself in the present moment and silence your mind. Your understanding of your mind in waking life will translate into your experience of other dimensions. You can then choose not to give in to thoughts of fear and paranoia, and you will no longer be an energetic magnet to beings that feed off of your fear.
3) Raise your vibration in the astral plane
Think of having a high vibration as a form of preventative medicine against negative astral entities. It’s much harder to protect yourself against something when it is already in your presence. It’s kind of like trying to fight off a cold when you already have a sinus infection versus fighting it off with proper sleep and diet prior to it reaching that point in the first place.
Remember that no demon or negative astral entity can torment you if you are protecting yourself. If you are cultivating love within yourself, praying for protecting from your heart, and create energetic shifts within yourself to raise your vibration, you are going to be vibrationally incompatible with negative entities who want to scare you and manipulate you.
Source: The Spirit Science