Astral Projection, or AP as you put it, is in fact possible. If I am not mistaken, religion/ practice/ life priniples are not neccisarily based on science.
With that said there studies in which those who study and practice and those who dont do it as often are compared and the results are astonishing. It is, after all, an entire grey area and very risky to go into. While souls do not have, in fact materialistic quality on this plain, they may be made of something on another.
I have been practicing both basic and advanced astral projection since I was about 7 years old due to the modernized traditions of the Nez Perce Shamanism. It is, in fact, a good way to center yourself as well as lift your being from it's holding. It also depends on where on the earth you decide to astral project.
The Pyramids of Giza are thought of by the shamanic community to be stargates. This is when you use your astral body to travel to another stargate somewhere within the universe. Now although there is no science behind it yet, the shamanic community very much supports the hypothesis behind the idea of stargates, and in fact there has been some very interesting results from shamans who have used astral projecting for this very practice
Astral Projecting for your first time without a partner of course is highly dangerous. If another being, dark or light, goes onto the astral plane, or whatever plane youve decided to travel to, there can be serious complications with returning back to your body, or actually in extreme cases, with your life.
The idea of astral projection is hard to explain to anyone. I hope this has been beneficial to you
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