Daniel 4:15

nevertheless, leave the stump of his roots in the earth, even with a band of iron and brass, in the tender grass of the field, this description already indicating that the application must be made to an animate being, whose fetters were those of the mental and spiritual darkness brought on as the result of the loss of reason; and let it be wet with the dew of heaven, there being no shelter to keep the weather away from him, and let his portion be with the beasts in the grass of the earth, so that he would partake of their food;