Simplify the following text for a Grade 15 native English-speaking person.
Original: It can involve such subjects as magic ( alternatively spelled and defined as magick ) , alchemy , extra-sensory perception , astrology , spiritualism , lithomancy , numerology etc. .
Simplified: It can involve such subjects as magic ( alternatively spelled and defined as magick ) , extra-sensory perception , astrology , spiritualism , numerology and lucid dreaming .