ITC is based on the knowledge that our physical world is superimposed by various realms of spirit. Some of the best evidence supporting that premise has come from the USA as a result of spirit photography.
George Meek set up special UV lightning in his North Carolina lab with a custom rattan filter. He mounted his 35-mm camera on a tripod, and set it up to fire off dozens of frames in rapid succession. In one of those frames, George captured his spirit body on film during his out-of-body experience.