as três irmãs

"To Native Americans, however, the meaning of the Three Sisters runs deep into the physical and spiritual well-being of their people. Known as the "sustainers of life," the Iroquois consider corn, beans and squash to be special gifts from the Creator. The well-being of each crop is believed to be protected by one of the Three Sister Spirits. Many an Indian legend has been woven around the "Three Sisters" - sisters who would never be apart from one another- sisters who should be planted together, eaten together and celebrated together." (daqui)