During the Renaissance, the five senses were understood to form a hierarchical system from the highest sense of vision down to touch. Vision was correlated to fire and light, hearing to air, smell to vapour, taste to water, and touch to earth.
Perhaps the human fascination with fire stems from the totality of its sensory stimulation. The fire gives a flickering and glowing light, ever moving, ever changing. It crackles and hisses and fills the room with the smells of smoke and wood and perhaps even food. It penetrates us with its warmth. Every sense is stimulated and all of their associated modes of perception, such as memory and an awareness of time, are also brought into play, focused on the one experience of the fire. Together they create such an intense feeling of reality, of the "here and nowness" of the moment, that the fire becomes completely captivating.
In conventional agriculture, vegetation is kept at the weed or herb level using energy to keep it cut, weeded, tilled, fetilised, and even burnt; that is, we are constantly setting the system back and incurring work and energy-costs when we stop natural succession from occurring.
Instead of fighting this process, we can direct and accelerate it to build our own climax species in a shorter time.
There is no attempt to form the garden into strict neat rows; it is a riot of shrubs, vines, garden beds, flowers, herbs, a few small trees, and even a small pond. Paths are sinuous, and garden beds might be round, key-holed, raised, spiraled, or sunken.