I really like this working definition of enchantment from R.G. Miga:

Enchantment is the process of creating and sustaining a symbolic interface that corresponds to one or more hyperobjects, in order to generate participatory consciousness.

He applies this to the Green Man (a figure that those have followed my blog for a while will know is important to me):

Growth is a hyperobject. It’s non-local, molten, phased, inter-objective, and viscous. Like gravity, Growth is familiar and necessary at human scale—but becomes horrifying and monstrous in its totality. We recognize that life depends on Growth at a measured pace; when it tips into a blind force, we instinctively recoil from it. Growth brings the corn up in the fields. Growth is also cancer. Growth is the visceral unease of being in the dense jungle, surrounded by a billion grasping mouths, all indifferent to anything but the pursuit of more. Our own Growth as a species keeps our children alive and safe, while cutting a broad swathe of murder and destruction across the planet. Time-bound humans have a hard time experiencing Growth as anything other than an acceleration toward Decay, its terminal opposite. And depending on which physicists you believe—Growth will eventually tear apart the fabric of the universe.

Something like the Green Man could be seen as a symbolic interface that enables participatory consciousness with the hyperobject of Growth. The symbolic representation of the Green Man is, at once, a human face consumed by vegetal growth and vegetal growth itself, anthropomorphized.

… Establishing a participatory consciousness with the Green Man allows us to relate to Growth at a human scale: by understanding some of what it wants (its telos), forgiving its excesses, and finding ways of cooperating with it.

Miga’s earlier essay, which is referred to in this one, is also worth reading.