As one reaches bliss, it becomes very difficult to conceal that state of intense ecstasy. There is a common desire at this point in time to share this state with others and to use it for benefiting all. This is the stage where you smile incessantly. Where you rise above the trivial dealings of the world and observe everything unattached. This feeling remains but only for a few moments. But these moments are so blissful, that purpose of an entire life can be dedicated to experiencing such a moment.