I dont think you are crazy either Astral Projection can show you a realm that is dark ,especially on the lower plains. Never attempt these when you are not feeling good or when you are mentally week. The plains are the levels we will follow after we pass leaving the highest, as in the highest. were we can learn new things and were we are no longer a human entity. All levels prior may be lower spirits trying to find there way. Never go to far and never leave yourself open at these points. You can channel these spirits and if you are open they can vessel. Your mind is what gives you the gift , we all have it we just need to see the signs and listen .. Your guardian angel will lead you. My last word is sometimes our mind plays tricks on us and we see what we think we see. Sometimes it is just us wanting to see it...still it is the greatest defense you have. Be safe on your travels.