It is very important to appreciate our precious human rebirth as a working basis and the various opportunities it offers to improve ourselves. A spiritual practice of the Dharma necessitates the understanding of the laws of karma and the certainty of our behavior and its results. We need to build up beneficial habits of mind, restraining from committing destructive, or non-virtuous, actions of body, speech and mind, and making an effort to perform constructive, or virtuous, ones.