Void enter Guide

To get into the void, you have to find and activate 4 glyphs first. After that you can get into the void via each of these glyphs. The order doesn't matter which one you activate when, as long as you have clicked each one once.

The Four Glyphs and their location

Position from the Glyph in Somweyr	Position from the Glyph in the Sewer
Position from the Glyph in Ren'Takal near the Ruins	Position from the Glyph in the Ocean, near Gaskin