In the Hindu Tradition, the fourth stage of life (संन्यास) is that of the ascetic sannyasin or sadhu, which may be entered into at any age, but which usually follows retirement from normal career pursuits and household family life. Those who choose this reclusive form of life essentially become hermits devoted to pursuing Self-Realization and Liberation.
Traditionally, wandering hermits without personal possessions or a permanent residence are known as a sadhu, while those who live alone in a permanent hermitage or at an ashram are known as a sannyasin. The latter are oftentimes members of a spiritual organization directed by a formal teacher or guru. In either case, the two terms are mostly synonymous, and such individuals are the Hindu equivalent of what people in the West usually think of as a monk.
All sannyasins are named with the prefix 'swami', and all have the suffix 'ananda' following their spiritual name. Thus, my name is swami+aditya+ananda, or Swami Adtiyananda. There is no special status whatsoever attached to the title of 'swami'. It merely identifies a sadhaka as one who has renounced normal life among other people to pursue a solitary spiritual lifestyle.
From time to time, although rarely, I allow those who have been my supporters to visit the hermitage for a spiritual retreat. One such visitor is allowing me to use their wireless laptop computer while they are here, but it won't be for very long.
Hari OM!
Adityananda