1) Buddha and Siddhartha 2) Esoteric ones 3) Esoteric persons 4) Medium and others 5) Occult believers 6) Occult figures 7) Paranormal gurus 8) Rasputin and his ilk 9) Rasputin et al 10) Rosicrucians 11) Séance holders 12) Swamis, yogis, et al 13) Washington WNBA team 1) Seers 2) Shamans 3) Yogis 
In the word's most general sense, mystics are religious visionaries who experience divine insights.