Thich Nhat Hanh
Author: Thich Nhat Hanh
Publisher: Riverhead Trade (2007)

In the Gospel according to Matthew, the Kingdom of Heaven is also described as yeast: 'The Kingdom of Heaven is like yeast that a woman took and mixed in with three measures of flour until all of it was leavened.' A little yeast has the power to leaven a lot of flour. The flour is our consciousness. Inside that consciousness are negative seeds: seeds of fear, hatred and confusion. But if you have the seed of the Kingdom of God inside and know how to touch it, it will have the power to leaven, to transform everything.