Natural magic  Natural magic in the context of Renaissance magic is that part of the occult which deals with natural forces directly, as opposed to ceremonial magic, in particular goety and theurgy, which deals with the summoning of spirits. Heinrich Cornelius Agrippa so uses the term in his 1526 "de vanitate". Natural magic so defined thus includes astrology, alchemy, and disciplines that we would today consider fields of natural science, such as astronomy and chemistry (which developed and diverged from astrology and alchemy, respectively, into the modern sciences they are today) or botany (from herbology).