Magic is a broad term that may refer to any, all, or none of the following:
• Magical abilities
• A supernatural, otherwise inexplicable occurrence or event
• The natural energy and force that magical practitioners harness in order to cast spells and affect change
This English term comes from the Greek mageia and the Latin magia, both of which imply "magus or magician's skill."
The Magi, a Persian caste of priests, spiritual practitioners, and experts of astrology and divination, are the source of these terms.
Related to - Magi and Magician.
You may also want to read more about Paganism here.
Be sure to check out my writings on Religion here.