Buddhist ethics and medicine are based on religious teachings of compassion and understanding of suffering and cause and effect and the idea that there is no beginning or end to life, but that instead there are only rebirths in an endless cycle. In this way, death is merely a phase in an indefinitely lengthy process of life, not an end. However, Buddhist teachings support living one's life to the fullest so that through all the suffering which encompasses a large part of what is life, there are no regrets. Buddhism accepts suffering as an inescapable experience, but values happiness and thus values life. Because of this suicide, and euthanasia, are prohibited. However, attempts to rid oneself of any physical or mental pain and suffering are seen as good acts. On the other hand, sedatives and drugs are thought to impair consciousness and awareness in the dying process, which is believed to be of great importance, as it is thought that one's dying consciousness remains and affects new life. Because of this, analgesics must not be part of the dying process, in order for the dying person to be present entirely and pass on their consciousness wholesomely. This can pose significant conflicts during end of life care in Western medical practice.