Furthermore, according to occultism, astrological forces are vibrations which might be transmitted to earth by means of an infinite variety of longitudinal waves with the ether. For that reason the tunnel from the air in Gann’s illustration (and in truth inside the book’s title) symbolises this transmission of astrological forces https://beaulruof.blogdanica.com/26201430/the-definitive-guide-to-wolfe-wave