Full Idea
Focus on fire rising through your form from the toes up until the body burns to ashes, but not you.
Gist of Idea
Imagine fire burning up your whole body, but not you
Source
Anon (Cent) (Centring [c.500 BCE], 28)
Book Reference
'Zen Flesh, Zen Bones', ed/tr. Reps,Paul [Penguin 1971], p.156
A Reaction
Try very hard to persuade yourself that you are immortal, even if you are not. Hm. Zen Buddhism actually contains very little commitment to what is true or false. It explores interesting beliefs like children playing with toys. Very post-modern.