“This willing and even exuberant interfacing with one's own mortality has ancient roots. The Stoics of ancient Greece and Rome implored people to keep death in mind at all times, in order to appreciate life more and remain humble in the face of adversities. In various forms of Buddhism, the practice of meditation is often taught as a means of preparing oneself for death while still remaining alive. Dissolving one's ego into an expansive nothingness - achieving the enlightened state of nirvana - is seen as a trial run of letting oneself cross to the other side.”