In Celtic wisdom the sacred is as present on earth as it is in heaven, as immanent as it is transcendent, as human as it is divine, as physical as it is spiritual. The sacred can be breathed in, tasted, touched, heard, and seen as much in the body of the earth and the body of another living being as in the body of religion. It is the true essence of all life.
All words have a history. But some are particularly interesting to explore when it comes to psychology—because they're directly born from it. How many times have you been mesmerized by something, so captured by it that it was like you were in a trance? The word "mesmerize" dates back to an 18th century Austrian physician named Franz Anton Mesmer (1734-1815). He established a theory of illness that involved internal magnetic forces, which he called animal magnetism. (It would later be known as mesmerism.)