Defined broadly, a visionary, is one who can envision the future. For some groups this can involve the supernatural

The visionary state is achieved via meditation, drugs, lucid dreams, daydreams, or art. One example is Hildegard of Bingen, a 12th century artist/visionary and Catholic saint. Other visionaries in religion are Mohammed, St Bernadette and Joseph Smith (said to have had a vision of and communed with the Angel Gabriel, the Blessed Virgin, and the Angel Moroni respectively).