I used to always say, "Herbs work on the physical, emotional, mental, and spiritual levels of existence." Later I came to understand that they also work on the magical level. What this means is that they do not just change our person but that they can transform the environment around us. They can actually cause events to occur. Ultimately, what makes an event magical is that it is unexpected. So, in other words, the herbs seem to get a step ahead of us and create an event which we did not foresee but which corrects or enriches our lives.
Matthew Wood, The Book of Herbal Wisdom: Using Plants As Medicine