The concrete example is Narada Himself, who attained this stage of eternal knowledge and eternal bliss. And the ways and means are open to all, provided one agrees to follow in the footsteps of Sri Narada Muni: Revision history
Diff selection: Mark the radio buttons of the revisions to compare and hit enter or the button at the bottom.
Legend: (cur) = difference with latest revision, (prev) = difference with preceding revision, m = minor edit.