There is no need to cross the line, there is Nothing and Emptiness behind it, but it's necessary to expand the boundaries using Nothing as the free space for growth. That is, it is necessary to grow from the inside, thereby growing from the outside.
The energy of faith is limitless. Belief in uncertainty allows you to extract energy from what is not, from lies and fantasies. Faith is the ability to draw energy from Nothing. Being is infinite and unknowable, belief in Nothingness is an ocean of energy.
Fear is a lie. Fear is something that does not exist. The point is, Nothingness separates us from NOTHINGNESS. You can disappear in Nothingness at any time and nothing will save you besides the all-powerful Karma. So, compared to the danger of NOTHINGNESS, all other fears are insignificant and ridiculous.
A person originally resembles a stem cell. As long as you're Nobody, you have a chance to be Anyone at all. Stem cells can turn into any other cells in the body. Reverse transformation is also possible, but to do that it's necessary to self-destroy and become Nothing again. It's only Nothing that can turn into anything at all, but anything at all can only turn into Nothing.