Upon the oxen of a mind free from doubt I put the yoke and plow of skillful means and wisdom. Steadfastly I hold the reins without distraction. Cracking the whip of effort, I break up the clods of the five poisons. I cast away the stones of a defiled heart, And weed out all hypocrisy. I cut the stalks and reap the fruit of action leading to liberation.... Realization does not arise out of words. Understanding does not come from mere suggestions. I urge all those who work for Enlightenment To meditate with perseverance and effort. Endurance and effort overcome the greatest of difficulties. May there be no obstacles for those who seek enlightenment.
--The Life of Milarepa