Here is a Japanese version of the recipe:
1st 1000 days: Subsist on a diet of water, seeds and nuts.
2nd 1000 days: Eat only roots, pine bark and a special tea made from the sap of the Chinese lacquer tree. (This is the source of the lacquer used on bowls and plates. It is excellent for repelling maggots and bacteria as well as for sealing human fate.)
Finally: Seal yourself into a cave, enter deep meditation, and await ascension.