“Wohpe’s themes are wishes, peace, beauty, pleasure, cycles, time and meditation. Her symbols are falling stars, sweetgrass and peace pipes. This Lakota Goddess’s name literally means ‘meteor’. Among the Lakota She is considered the most beautiful of all Goddesses. She generates harmony and unity through the peace pipe and pleasure from the smoke of sweetgrass. Stories also tell us that She measured time and created the seasons so people could know when to perform sacred rituals. When a meteor falls from the sky, it is Wohpe mediating on our behalf.
Go stargazing! At this time of year, meteors appear in the region of the Perseids, as they have since first spotted in 800 A.D. People around the world can see these (except for those who live at the South Pole). If you glimpse a shooting star, tell Wohpe what message you want Her to take back to heaven for you.
To generate Wohpe’s peace between yourself and another (or a group of people) get some sweetgrass (or lemon grass) and burn it on any safe fire source. As you do, visualize the person or people with whom you hope to create harmony. Blow the smoke in the direction where this person lives, saying,
‘Wohpe, bear my message sure; keep my intentions ever pure.
Where anger dwells, let there be peace. May harmony never cease.’
Afterwards, make an effort to get ahold of that person and reopen lines of communication.”
(Patricia Telesco, “365 Goddess: a daily guide to the magic and inspiration of the goddess”.)
“In Lakota mythology, Wóȟpe (less correctly spelled ‘Wohpe’) is a Goddess of peace, the daughter of Wi and the Moon, Haŋhépi-Wi. She was the wife of the south wind. When She visited the Earth, She gave the Dakota Native Americans (Sioux) a pipe as a symbol of peace. Later, Wóȟpe became the White Buffalo Calf Woman. An alternative name for Wóȟpe is Ptehíŋčalasaŋwiŋ.” 
Here is one story of White Buffalo Woman, “the Lakota Goddess of secret knowledge. Also called Ptesan-Wi, (which translates as ‘White Buffalo Calf Woman’), She appeared one day to two hunters. She was dressed all in white and carried a small bundle on Her back. One of the men was overcome with lust for Her, but the second man recognized that this was no ordinary woman. The first man approached White Buffalo Woman, intending to embrace Her, and She smiled at him. No sooner had he reached Her than a white cloud of mist surrounded them. When the mist cleared away, nothing was left of the man but his bones. White Buffalo Woman explained to his companion that She only given him what he had desired, and in that moment he had lived a lifetime, died, and decayed.
The second hunter was sent back to his village to prepare the way for White Buffalo Woman. She told the people that She had come from Heaven in order to teach them the seven sacred rituals–the sweat lodge, the naming ceremony, the healing ceremony, the adoption ceremony, the marriage ceremony, the vision quest, and the sundance ceremony. From the bundle on Her back, She gave the people all the tools they would need for the rituals, including the chununpa, the sacred pipe. She taught of the connection of all life, and the importance of honoring Mother Earth. White Buffalo Woman told the people that She would return to them when needed, to restore their spirituality and harmony with the land.
As she walked away from the village, She looked back and sat down. When She stood again, She had become a black buffalo, signifying the direction west and the element earth. After walking a little further, She lay down again, this time rising as a yellow buffalo, signifying east and the sun. A third time, She walked, lay down, and arose as a red buffalo, signifying south and water. Finally, She rose as a white buffalo, signifying north and air. With one last look back at the people, She galloped off and disappeared.” 
ASSOCIATIONS (White Buffalo Calf Woman):
General: White buffalo, peace-pipe, circle (hoop), and the numbers 4 and 7.
Animals: Buffalo and bison, eagle and hawk.
Plants: Buttercup, pulsatilla (Pasque flower), and spruce.
Perfumes/Scents: Sage, wisteria, tangerine, and rose geranium.
Gems and Metals: Agate, rose quartz, gold, silver, and red clay.
Colors: White, yellow, red, and black. 
“Wohpe as peace represents harmony, meditation and cycles of time. Sacred stone of Wóȟpe is turquoise that ranges in color from sky blue to blue-green and green. This stone has been prized for centuries and was used in ancient Egypt, Persia for jewelry and amulets. Also was known and used by the Aztecs and other people of South and Central America, but is probably better known because of its use by North American native peoples. For them it was prized by medicine men who used it for healing, to bring rain and for protection. It has also long been a symbol for friendship, some say one should either give or receive it as a gift for the magic to work.” 
In an interview for White Buffalo: An American Prophecy, Arby Little Soldier comments on the birth of a sacred White Buffalo – Lightning Medicine Cloud – on the Lakota Ranch in Texas, and what it means for humanity.
Sadly, this buffalo calf was killed and butchered back in April 2012 (click here to read the story). As far as I know, the killers are still at large.
Chief Arvol Looking Horse, 19th generation Keeper of the Sacred White Buffalo Calf Pipe is the leader of the Lakota Dakota Nakota Oyate, the great Sioux nation and is a man with a vision. Here in this video, he has a great urgent message to all world religious and spiritual leaders
Goddessgift.com, “Goddess Symbols of White Buffalo Calf Woman“.
Sabrina. Goddess A Day, “White Buffalo Woman“.
Chasing Horse, Joseph. Native American Indian Resources, “White Buffalo Calf Woman“.
Consciouslyconnecting.blog.com, “White Bison Prophesy: A Sign from the Spirits“.
Crystalinks.com, “White Buffalo Calf Woman“.
Gaeagoddessgathering.com, “White Buffalo Calf Woman – Walk Your Talk“.
Goddessgift.com, “White Buffalo Calf Woman: The Mother of Life”.
Legendsofamerica.com, “Lakota Story of Wohpe (by HinTamaheca)“.
Lightningmedicinecloud.com, “The Legend & Importance of the White Buffalo“.
Sioux.org, “Lakota Sioux Creation Myth – Wind Cave Story“.
Walker, James R. Lakota Belief and Ritual.
Whitehorse, Peace. Order of the White Moon, “White Buffalo Calf Woman“.
Wikipedia, “White Buffalo Calf Woman“.
University of California, “Lakota Ceremony“.