What's the use of burying Mani stone in the grave?

According to Buddhism, it is to cross over, pray and so on; You asked about the "Global Mani Stone Merit Collection", where and how Mani Stone is placed:

Where Mani Stone is located, there is a bodhisattva who benefits all beings and can quickly change Feng Shui to bring good luck. Mani stone can be placed in the following places:

Rivers and lakes, famous mountains and rivers, rural fields, barren hills and wild fields, garden cemeteries, campus communities, park squares, shopping malls, supermarkets, hotels, balcony roofs, street intersections, Yushu grass, breeding and slaughtering, hospital food markets, bridge towers, tourist attractions,

Temples, temples, home offerings, feng shui ornaments, flower beds, potted plants, aquariums, gifts to relatives and friends, random placement, bus stops, railway stations, subway stations, airports, zoos, aquariums and other interests are all sentient beings, because each Mani stone can transform six sentient beings and free them from the pure land! Please try to choose a clean and hidden place when placing.

When placing, respectfully place Mani stone in the above-mentioned appropriate position. You can recite the instrument when you have time (issue the instrument card when you ship it). If you don't have enough time or ask someone to place it, you can recite the six-character Daming mantra directly: Omani is beautiful!