The realm of human beings is, in fact, the very embodiment of great attachment and desire. Almost every thought we have, every word we speak, and every move we make is based upon our ingrained sense of need. We always seem to need and therefore want something, and it is just this wanting that determines our actions. When pleasures have been achieved, we want something else or more because we are bored again, so we perpetuate wanting and do what we can to satisfy our boundless desires that started to churn the moment we were born and hardly leave us until we die. We are then born again after a short while with the very same inclination. This never-ending sense of need is in truth desire and attachment that manifests openly through the exterior world that appears to us and through the inner world that we experience. This is the case for all living beings that live and experience the world as they do, and it is marked by feverish anxiety and woe.
– Thrangu Rinpoche