Astral projection, what exactly is it? Astral projection is when your astro body leaves the physical body. We are multidimensional, we all have 7 sheath bodies and the astro body is one of them. The other 6 bodies are physical, mental, causal, etheric, emotional and spiritual. Some people can do astral projection naturally and other people need to find the proper astral projection techniques so that they may do it properly.