The Six Bardos by Kalu Rinpoche - explains the intervals between two things - the Beginning and the End, Life and Death. However, the term Bardo implies that these two things are parts of the whole. That which begins and that which ends are part of the Whole, also called "continuity", that which continues. Even Life and Death are part of the Whole called Samsara, Birth-Life-Death. The Whole is also known as Existence, which continues even when a part of it passes on through the process called Death. Thus, the Bardos are reflections of humanity's celebration of Existence, Tibet's contribution to religious expression.