Mystic is a person who has chosen to pursue an emotional focus; in his approach to life. Usually a person with this focus; will feel drawn to the teachings of Christianity. Because Christ worked on the second ray of love wisdom. However when a person first starts serious meditation. He will no longer be a pure mystic. This is because the first impact of soul is purification with spiritual understanding. Which is a mental level function.
Here is a link to an article explaining the context; of how the mystic fits into the over all pattern of life. Mental level path is called esoteric.
The Tibetan book of the dead describes the process of dying; with guidance to afterlife. It is stated in the Lord’s prayer. That as it is on earth, so it is in heaven. We all remain the same person in the fourth dimension. With the only difference being in heaven; we do not have a physical body.