The best people studying Astral Plane are serious scientists who are often skeptical. It is a fact, but one that can be dangerous. So clever scientific methods are important for the progress of the subject.
We are really Astral Project every night in our dreams. It is a natural occurrence and part of our physical makeup. Dreams are needed to stay alive and interrelated.
Astral Plane is as vast as the Universe itself. Because it is a part of its existence, it is important to be born here, (the universe) and within it. Also, this is one of the only things where the reverse is true. Astral Plane gives birth and a host of the Universe itself. "Aura is a mysterious reflection of the universe and the universe is a magical reflection of our aura."-Edward Alexander Crowley
Thinking is less important as an existing thing than something you can handle and see, or smell. It brings major changes to the outcome of our material truth. "Imagination is more important than knowledge." -Albert Einstein
Think of things like dark matter, anti-matter, and pure energy. Even things like electricity and ether. Just because we have the means to show the visible display of their existence does not mean that they do not exist in the face of the hand. There are many other things that we do not notice through the science of our senses.
Thinking in terms of relativity is important for us to sort things out and make comprehensive judgments and observations. Time is male and space is woman God is more than gender. Time has nothing to do with things to be discovered. They always exist, as well as the possibility of their outcomes, long before we have achieved the purpose of doing them well known.
Same as Astral Plane and its components. There are some great discoveries and many unplanned territories in the field of Ethereal Plane research and training.
Ever in a dream where you're running faster as long as everything is slow motion? Or trying to touch something really hard and it comes out really soft, even mild? There are three planes on Astral Plane. The Higher, the Lower, and the Ethereal Plane. The slow movement is actually the Ethereal Plane.
Ethereal Plane is the gate on the lower Astral. And as it stands for the reason the lower Astral is the gate on The Higher Astral Plane. Once you meet the higher Astral, you should visit both the lower planes easily.