An ancient Tibetan tradition, it is said, "when the wind strikes the prayer flag, whoever is then touched by this wind, whether human beings or animals of any kind, they will benefit from the powerful blessings of the mantras and aspiration prayers."
Prayers, sacred mantras and images of Buddhist deities are woodblock-printed on thin cloth and respectfully hung, far and wide, in high windy places. Suspended from flagpoles, from rooftops, from the eaves of houses, or from tree branches, they are even flown from the peaks of lofty mountain-tops.
Hanging prayer flags is considered an act of merit, inviting peace and harmony into our surroundings, and even our local neighborhood. The flags can ornament our garden, balcony, or window, and can also be hung indoors to bless our living space. One need not be Buddhist to benefit from their blessings, as they benefit all.