What is the goal of the Tesseract Society?

Answer given to Non-Members:

FOR THE BETTERMENT OF MAN THROUGH THE ART OF VOODOO, BLACK MAGICKS, WITCHCRAFT, MUSIC, AND THE DARK SCIENCES.

Answer given to Neophytes: 

There are secrets that are dangerous to know. 
We must protect them at any cost. 
Some art is dangerous. 
We must attempt to keep it from spreading.