Consciousness exists on two levels: as seeds and as manifestations of these seeds. Every time a seed has an occasions to manifest itself, it produces new seeds of the same kind. If we are angry for five minutes, new seeds of anger are produced and deposited in the soil of our unconscious mind.
There are many kinds of seeds in us, both good and bad. Some were planted during our lifetime, and some were transmitted by our parents, our ancestors, and our society. Every time we practice mindful living, we plant healthy seeds and strengthen the healthy seeds already in us. If we plant wholesome, healing, refreshing seeds, they will take care of the negative seeds, even without our asking.
Wisdom from PEACE IS EVERY STEP - Thich Nhat Hanh