In this lifetime you can lose everything. Everything passes here. But you don't lose any spiritual knowledge that you have gained in this or any other lifetime. It is inside you.

There are those who feel that meditation is unrealistic or takes them out of the world, and if that was your experience with mediation, you weren't meditating.

Tantric Zen is a state of mind

Prana is an element of energy. Energy is a manifestation of a certain principle which in Indian cosmology they call shakti, or spiritual power. Don't worry about the words too much.

The force that drives the green fuse, as Dylan Thomas said, cannot be understood. So self-discovery is to accept your daily meditation, to observe yourself meditating and not be concerned with the results.

The light of the supra-conscious, of salvakalpa and nirvikalpa samadhi, is not connected to this world at all. It passes through this world but it is not part of this world, in a way of speaking.

Computer science is the most misunderstood field there is. You are being paid to solve puzzles. For a person who has practiced meditation in past lives, that is the way your mind works.