1. The Second Key dissolves the compound of the Stone, and begins the separation of the Elements in a philosophical manner: this separation of the elements is not made but by raising up the subtle and pure parts above the thick and terrestrial parts.

2. He who knows how to sublime the Stone philosophically, justly deserves the name of a philosopher, since he knows the Fire of the Wise, which is the only instrument which can work this sublimation. No philosopher has ever openly revealed this Secret Fire, and this powerful agent, which works all the wonders of the Art: he who shall not understand it, and not know how to distinguish it by the characters whereby it is described, ought to make a stand here, and pray to God to make it clear to him; for the knowledge of this great Secret is rather a gift of Heaven, than a Light acquired by the natural force of reasoning; let him, nevertheless, read the writings of the philosophers; let him meditate; and, above all, let him pray: there is no difficulty which may not in the end be made clear by Work, Meditation, and Prayer.

3. Without the sublimation of the Stone, the conversion of the Elements and the extraction of the Principles is impossible; and this conversion, which makes Water of Earth, Air of Water, and Fire of Air, is the only way whereby our Mercury can be prepared.

4. Apply yourself then to know this Secret Fire, which dissolves the Stone naturally and without violence, and makes it dissolve into Water in the great sea of the Wise, by the distillation which is made by the rays of the Sun and Moon.

5. It is in this manner that the Stone, which, according to Hermes, is the vine of the Wise, becomes their Wine, which, by the operations of Art, produces their rectified Water of Life, and their most sharp Vinegar. The Elements of the Stone cannot be dissolved but by this Nature wholly Divine; nor can a perfect dissolution be made of it, but after a proportioned digestion and putrefaction, at which the operation of the Second Key of the First Work is ended.