Prayer Flags or Wind Horse
There are two kinds of prayer flags: horizontal ones, called lung ta (meaning "Wind Horse") in Tibetan, and the vertical Darchor. "Dar" translates as "to increase life, fortune, health and wealth", "Cho" translates as "all sentient beings".
Lung Ta (horizontal) prayer flags are of square or rectangular shape and are connected along their top edges to a long string or thread. They are commonly hung on a diagonal line from high to low between two objects (e.g., a rock and the top of a pole) in high places such as the tops of temples, monasteries, stupas or mountain passes.
Darchor (vertical) prayer flags are usually large single rectangles attached to poles along their vertical edge. Darchor are commonly planted in the ground, mountains, cairns or on rooftops and are iconographically and symbolically related to the Dhvaja.