Prayer wheels come in all shapes and sizes, from portable versions to this mamma. In karmic terms every revolution corresponds to one mantra chanted. I like the Buddhist philosophy, but find this one hard to swallow. Another Buddhist karma trick to a better future existence is to perform prostrations - usually 108 000 - non stop for 3-4 years. It’s about subduing the ego, and I actually find this easier to relate to than the prayer wheel gig.