The Jivan Mukta

The Ribhu Gita (ऋभुगीता) forms the sixth part of Siva Rahasya Purana. It details in about two thousand verses the dialogue on the Self and Brahman between Sage Ribhu (who in turn heard it from Lord Shiva Himself) and Sage Nidagha on the slopes of the Mount Kedara in the Himalayas. (source: wikipedia). 

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• The jivan mukta is a person liberated during his lifetime, who continues to have consciousness of the body and the world (as brahman) along with his firm abidance in his Siva-Self. He ever abides in the blissful peace of sat-chit-ananda. He is poised rock-firm in the conviction that he is not the body, and that his Being is the sole existence, the sole alert-awareness-bliss of Siva-Self Supreme.
• The jivanmukta has his consciousness completely dissolved beyond recognition in his brahman-Self. Eternally alone in his Self, he is ever lost in the enjoyment of the bliss of his brahman-Self.

From "The Essence of Ribhu Gita" by Prof. N. R. Krishnamurthi Aiyer