Freddy Silva has done superb work on dolmans, portals, and crystal positioning; one of his books is titled “Portals”.
There is a well documented case of hippies intending to sleep overnight in the middle of stone hinge during a planetary alignment.
Neighbors reported screams, police were called; a diary was found along with who knows what else; the hippies were never found; they traveled through the portal activated by the alignment & stone hinge’s focusing of the energy.
Coral Castle’s creator used the crystalline stone structures of coral to direct energy though times of planetary alignment and I assume pre-dawn energy spikes caused by the counter rotation of the sun and earth along with magnetic manipulation to move stones.
To be continued, edited, & expanded upon 🙂