First Physician monologue (Act 5) — Tamburlaine the Great — Part 2

I view'd your urine, and the hypostasis, [303] Thick and obscure, doth make your danger great: Your veins are full of accidental heat, Whereby the moisture of your blood is dried: The humidum and calor, which some hold Is not a parcel of the elements, But of a substance more divine and pure, Is almost clean extinguished and spent; Which, being the cause of life, imports your death: Besides, my lord, this day is critical, Dangerous to those whose crisis is as yours: Your artiers, [304] which alongst the veins convey The lively spirits which the heart engenders, Are parch'd and void of spirit, that the soul, Wanting those organons by which it moves, Cannot endure, by argument of art. Yet, if your majesty may escape this day, No doubt but you shall soon recover all.