dw and others have cited much evidence of how a biological body may entirely leave our familiar universe, and a case in point is that an entire planeload of people may have left our normal space/time framework, passing into third density time/space - a realm of three dimensions, but reciprocally related to space/time in the sense that the roles of travel/duration are reversed - and re-appeared ten minutes later, with all on-board chronometers ten minutes advanced as compared to everyone else.