The fundamental difference between the experience of sages such as Sri Ramana, who know themself to be the one infinite and undivided self-conscious being, and the experience of those of us who imagine ourself to be anything other than this one infinite and undivided self-conscious being, which is our true and essential self, lies only in the limitations that we imaginarily superimpose upon our truly infinite being. This fundamental difference is expressed by Sri Ramana in verses 17 and 18 of Ulladu Narpadu:
[Both] to those who do not know themself [and] to those who have known themself, this body [is] only 'I'. [However] to those who do not know themself 'I' [is limited to] only the extent of the body, [whereas] to those who have known themself within the body 'I' itself shines devoid of limit [boundary or extent]. Understand that this indeed is the difference between them.