Throughout this writing, I have made many references to one evident fact; the only possible way for an individual to appreciate the reality of this S… - Robert Monroe

In non-physical trips to Locale II, often there is a "layer" or area which one must pass through...It is a gray-black hungry ocean where the slightest motion attracts nibbling and tormenting beings... If you move slowly and do not react to the curious "fish" who come to investigate, you pass through without much incident. Move violently and fight back, then more excited denizens come rushing in to bite, pull, push, shove.
Could this be the borders of hell? It is easy to conclude that a momentary penetration of this nearby layer would bring "demons" and "devils" to mind as the chief inhabitants. They seem subhuman, yet have an evident ability to act and think independently. Who and what are they? I don't know. I haven't taken the trouble to stay there long enough to find out. Only by terrified trial and error did I find the method to pass through in reasonable peace.

Gradually I became more accustomed to this strange addition in my life. More and more, I was slowly able to control its movements. In a few ways it had actually become helpful. I had become reluctant to part with it. The mystery of its very presence had aroused my curiosity.

The experimenter will want to proceed in a manner that will produce consistent results, perhaps not every time, but often enough to validate the evidence to his own satisfaction. I believe that anyone can experience existence in a Second Body if the desire is great enough. Whether or not anyone should is beyond the scope of my judgment.