The Pan-Yans can beings considered as pentacles of protection, or attraction. They are, for most powerful, manufactured on sides of behaviour of monk, and written with the hand. The others are done on standard, and printed fabric. But both are blessed thereafter and their "ideograms" are activated.
The major part of the side-Yan is intended to be related to is, a such waistcoat. They can represent of Yans (kind of ideograms), of the pentacles, the fantastic animals, the prints or the photographs of Venerables. Their capacities go from protection against the weapons, fire, water... until attracting the customers in a shop.
For the small history, the friend who my brought back mine, is also the "provider" of a whole barracks firemen. After one as of their, to protect from a Pan-Yan, left unscathed a house which it is with half ploughed up on him, following a fire. It has also some customers of the bodyguard type or private conveyor of funds.