I've heard sannyasa, the 4th Vedic ashrama, is meant for the attainment of moksha. Thus, the sannyasin is expected to go to a solitary mountain cave or a dense-forest retreat where he must get lost in deep meditation till death and thus attain the desired moksha. Evidently, sannyasa is meant for those that are disgusted with life, and moksha seems to mean death through yoga-meditation. Nevertheless, it is, most probably, Vivekananda that invented a new & novel thesis, namely, that sannyasa is also love of life, and so the sannyasin need Not abandon the worldly life and embrace death for moksha. The sannyasin is free, by this thesis, to lead a worldly life and relish, like all worldly people, all the ease & pleasure, both sensuous & sensual, of life, and yet he's certain to attain the moksha, the only condition being that he has to enjoy all the ease & pleasure of life with spiritual ' detachment '. The problem with this novel thesis is it makes the essential distinction between a sannyasin and a Non-sannyasin vanish outright.