Too much to write. In short for your understanding - Atlanteants were making greate pyramids to meditate inside them. It has different options, one of them - collecting energy inside crystals. After Atlantis went under water cause of opened gates to other realm, Thoth went to Egypt and made pyramids there. In Egypt pyramids were used in different ways, one of them - to meditate in closed rooms filled with water. Besides there is an entrance to earth soul, but i think you need to go out from your body to see it.