The Teachers tell us that there is an aspect of our minds that is its fundamental basis, a state called “the ground of the ordinary mind.” It functions like a storehouse, in which the imprints of past actions caused by our negative emotions are all stored like seeds. When the right conditions arise, they germinate and manifest as circumstances and situations in our lives.
If we have a habit of thinking in a particular pattern, positive or negative, then these tendencies will be triggered and provoked very easily, and recur and go on recurring. With constant repetition our inclinations and habits become steadily more entrenched, and continue increasing and gathering power, even when we sleep. This is how they come to determine our life, our death, and our rebirth.