Regarding the Non-Directional Light in the Earth: There is an esoteric interpretation of this, too.
Traveling into the center of the earth could also be interpreted as traveling to the center, or source, of the soul/mind/consciousness. A flower grows out of the earth, the seed is planed in the earth. Thus, travelling into the earth is related to finding this seed of consciousness.
Remember the Christmas Story, in which shepherds watch over their sleeping flock at night; suddenly something appears in the sky and they follow a light, eventually finding Jesus.
Traveling into the center of the earth could also be interpreted as traveling to the center, or source, of the soul/mind/consciousness. A flower grows out of the earth, the seed is planed in the earth. Thus, travelling into the earth is related to finding this seed of consciousness.
Remember the Christmas Story, in which shepherds watch over their sleeping flock at night; suddenly something appears in the sky and they follow a light, eventually finding Jesus.
- The night indicates introspection or meditation/introspection/taking drugs.
- The sleeping flock represents the calmed down mind.
- The light is an interior light, probably of the soul. This light is non-directional and seems to fill the skull/brain/consciousness. This light is very real, I experienced it myself. Wearing some sort of blindfold may help.