The poet knows that he speaks adequately, then, only when he speaks somewhat wildly, or, “with the flower of the mind;” not with the intellect, used as an organ, but with the intellect released from all service, and suffered to take its direction from its celestial life; or, as the ancients were wont to express themselves, not with intellect alone, but with the intellect inebriated by nectar. As the traveller who has lost his way, throws his reins on his horse’s neck, and trusts to the instinct of the animal to find his road, so must we do with the divine animal who carries us through this world. For if in any manner we can stimulate this instinct, new passages are opened for us into nature, the mind flows into and through things hardest and highest, and the metamorphosis is possible.
This is the reason why bards love wine, mead, narcotics, coffee, tea, opium, the fumes of sandal-wood and tobacco, or whatever other species of animal exhilaration. All men avail themselves of such means as they can, to add this extraordinary power to their normal powers; and to this end they prize conversation, music, pictures, sculpture, dancing, theatres, travelling, war, mobs, fires, gaming, politics, or love, or science, or animal intoxication, which are several coarser or finer quasi-mechanical substitutes for the true nectar, which is the ravishment of the intellect by coming nearer to the fact.
Emerson; Essays, Second Series