The Four Winds are evoked in many Lakota ceremonies. The Four Winds are all wakan. Wakan is a Lakota word which represents mysterious powerful beings or spirits.
Lakota Catlinite Four Winds Pipe by Alan Monroe
The first wind is the WEST, Yata. This is where Wakinyan (the Thunderbird) lives. It is where all animals are created and the West Wind is present when man and animals die. The West Wind is strong and mighty but good natured. It is where the sun goes to rest. The eagle is the akicita (marshall) of the West Wind.
The second wind is the NORTH, Woziya. The tonweyapi of the North are the white owl, raven and wolf. Tonweyapi are aides – they can be marshalls, soldiers, spies or counselors. The North Wind is strong and usually cruel but occasionally jolly. The things he touches grow cold and die. The North Wind decides if the dead people are worthy to pass or wander forever cold, hungry and naked.
The third wind is the EAST, Yanpa. The nighthawk is the tonweyapi of the East. The East Wind sleeps a lot. It is called on to help the sun and the dawn appear. And it gives a place for the moon to regrow. The sun and the moon know and see everything on earth and they tell it to Yanpa. Lodges face east to please Yanpa. The East Wind is evoked by the sick asking for a rest.
The fourth wind is the SOUTH, Okaga. The tonweyapi of the south are waterfowl and the meadowlark. The South wind makes beautiful things, flowers and seeds. It is the giver of life. It is kind and brings good weather. The south is a place where spirits can go after death.
The winds are sometimes at odds with each other over women or other things. Iktomi (spider wakan) purposely stirs up trouble among the Four Winds so he can have fun watching them fights.