Arlow points to the oral roots (as opposed to the roots in other levels) of the symbolism of fire, of tools, and of the fantasy of being crushed. Fire is intimately associated with active and passive fantasies of devouring. Tools are the extension of the body, and when they are employed to express similar fantasies they represent the teeth. The fantasy of being crushed may be derived from the wish to be eaten, swallowed, and thus reunited with the mother.