
1) Buddhist practice
Found on
https://www.crosswordclues.com/clue/sokushinbutsu

It is believed that many hundreds of monks tried, but only 24 such mummifications have been discovered to date. There is a common suggestion that Shingon school founder Kukai brought this practice from Tang China as part of secret tantric practices he learned, and that were later lost in China. Today, the practice is not advocated or practiced by ...
Found on
http://en.wikipedia.org/wiki/Sokushinbutsu
No exact match found.