The light is not quantifiable. You experience it in meditation when thought stops. When you go beyond the limitations of the ego, the light is waiting for you.

When I speak of tantric yoga, I'm speaking of a type of yoga that is best practiced by persons who live in society. It's a yoga for the last yuga.

Tantra is not sexual yoga. When the word tantra is used in the West, very often people immediately associate it with some kind of sexual yoga in which you use sex as a vehicle for enlightenment.

If you are interested in Taoism, I would suggest that you read the Way of Life by Lao Tsu, the founder of Taoism. I personally prefer the Witter Brynner translation.

In mysticism, there's more of a sense of adventure, of camaraderie.

Will is developed in meditation. It is refined. It is within you, but you don't know how to get to it.

Just remembering what you did in previous lives doesn't mean a thing. It's nice to remember that you had higher states of mind, but that won't necessarily get you there. It might even make things painful.