from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A symbolic description of the world, meaning darkness and death are (symbolic) valleys on earth one must walk through, that is, part of the human experience
- n. A very dangerous place.
Biblical. "Shadow of death" from the Hebrew צלמות (tzal "shadow" + mavet "death") c.f. Old Testament, Psalm 23. (Wiktionary)