Dimension shifting explained in physical terms, as vibrational rate of molecules, thus termed density by the Zetas. Why different vibrational rates cannot interact, and thus co-exist is same space. Earth's planned switch to a higher density and how this will be accomplished. What will be left behind, what included. What decreased sunlight will mean to humanity or life on Earth. Dangers in shifting, such as documented in the movie The Fly and in the Philadephia Experiment. How aliens control this by DNA markers, perimenter boundaries, and connectedness. Why spontaneous shifting occurs in the Bermuda Triangle, and what the missing pilots experienced. Density shifting in faster than light travel, and frozen plant growth at landing sites. Why contactees report on knocking announcing arrival of their visitors, being taken through solid walls or window, and teleporting.