Here is a quote from the book The Vision by Tom Brown, Jr (1988):
“You believe that penetrating the veil is impossible, because that is what you have been told to believe. You have created that reality based on other people’s beliefs that there can be no world of spirit. Somehow, you think that it must be difficult to enter this realm and that you must suffer and try hard to get there. This then is what you have created. But when you have absolute faith, learn to let go completely, then, and only then, will you touch the veil.”