I can tell you the most sacred spell in Tibet.

Chinese is called "Hum, Ma, Ba, Mi, coax", and everyone's transliteration is slightly different.

Roman pinyin is om mani padme hum.

Sanskrit can't be typed by computer,

Can only use pictures.

But Tibetan is ok.

The key is to keep it in mind, not in your body.

However, it is also useful to write on paper and put it in your pocket.

It's just that writing is useful. That's all I know about this spell.