God is never so turned away from man, and never so much sendeth him new paths, as when he maketh ascent to divine speculations or works in a confused or disordered manner, and as it adds, with unhallowed lips, or unwashed feet. For of those who are thus negligent, the progress is imperfect, the impulses are vain, and the paths are dark.

Zoroaster, quoted at The Herb Dangerous, Part II: The Psychology of Hashish by Oliver Haddo (Aleister Crowley)