Although the books titled "Book of the Dead" that were written in Egypt and Tibet are known as the old literature that explains the meaning of dying, they do not necessarily focus on issues at the time of one's death.
死を迎えることの意味を説いた古い文献としては、エジプトやチベットで作られた『死者の書』が知られているが、それは必ずしも臨終時の問題に焦点を合わせたものではない。