Fade away? Like "dead Jedi becoming One with the Force" type of fading away? Or like "getting dusted by Thanos finger snap" type of fading away? Or will you implode to Inner Space like the Frielings's house in Poltergeist, and go into the Light? I wouldn't want the eaten by a bear thing - that seems like it would take several minutes for the bear to devour you and snack on your intestines. If you're going to the mountains, just find a cliff to jump off. Nice and quick.