Chemistry comes about through the transformation of earth, air, fire and water. All chemistry is just movement within those things, and so we experience the joys and the sorrows of hot and cold, and dry and moist, because of these chemical transformations. In a similar way, we create and experience a world of time, space, motion and energy, through our intuitions, our thoughts, our sensing and our feeling.
Very few persons, comparatively, know how to Desire with sufficient intensity. They do not know what it is to feel and manifest that intense, eager, longing, craving, insistent, demanding, ravenous Desire which is akin to the persistent, insistent, ardent, overwhelming desire of the drowning man for a breath of air; of the shipwrecked or desert-lost man for a drink of water; of the famished man for bread and meat.