But now I knew contemplation at its height. At its height, but not yet in its fullness. For in its fullness the way of Mary includes the way of Martha and raises it, so to speak, to its own higher power. Mescalin opens up the way of Mary, but shuts the door on that of Martha. It gives access to contemplation---but to a contemplation that is incompatible with action and even with the will to action, the very thought of action. In the intervals between his revelations the mescalin taker is apt to feel that, though in one way everything is supremely as it should be, in another there is something wrong. His problem is essentially the same as that which confronts the quietist, the arhat and, on another level, the landscape painter and the painter of human still lives. Mescalin can never solve that problem; it can only pose it, apocalyptically, for those to whom it had never before presented itself. The full and final solution can be found only by those who are prepared to implement the right kind of Welranschauung by means of the right kind of behavior and the right kind of constant and unstrained alertness. Over against the quietist stands the active-contemplative, the saint, the man who, in Eckhart's phrase, is ready to come down from the seventh heaven in order to bring a cup of water to his sick brother.
Aldous Huxley, "the doors of perception"