Thanks to Nacho for the link.
In Buddhist texts, consciousness is said to be a field, a plot of land in which every kind of seed has been planted, seeds of suffering, happiness, joy, sorrow, fear, anger, and hope. The quality of our life depends on which of these seeds we water. The practice of mindfulness is to recognise each seed as it sprouts, and to water the most wholesome seeds whenever possible.
—Thich Nhat Hanh