This is my opinion, perhaps we have a misconception on what nirvana is or how it feels, and we assume that nirvana i.e. self annihilation or the cessation of self activity, implies death of the "individuality", and what is "individuality"? I would say that self annihilation pertains to the notion of self as an ego and I-maker, one who believes his doing things and who claims the sense of doership, in Nirvana, the sense of doership drops, but you still operate within the world of karma, you still can enjoy life, create , destroy, wage war, have sex... you just dropped the identification with the body-mind.
I believe that people who have attained Nirvana or Moksha, be it the Buddha Shakyamuni, Sri Ramana Maharshi or any similar person, they are immortals as consciousness, but died as body-mind. Disciples of Ramana Maharshi were crying that their guru is departing from this life, and he said to them, "stop being stupid I'm not going anywhere", the body is dying, but "that" is immortal. See it like this, one cell of your body died, but you are the entire body and still alive, you do not identify yourself with a cell (and the cell certainly have a sense of individuality and fighting for its survival).... Ramana Maharishi as body-mind/cell died, but the true Ramana as body will live forever.
You have a plethora of yogins and maha-siddhas who have attained sahaja, occult powers, and immortality, some famous names are Mahavatar Babaij (the founder of Kriya Yoga School), Sri Gorakhnath (the ascetic hatha yogin), Sri Matsyendranath (the revivalist of Hatha Yoga and the founder of the KAULA yogini cult and the Kaula tradition-whoch is mostly associated with Vamamarga and sexual tantras + bodily mudras), you have Saraha the founder of Mahamudra, the great yogin Milarepa, the famous Naropa (six yogas of Naropa), Virupa... and many many others.
The point is apparently you can achieve the highest state and still maintain a sort of individuality, you can still operate, create and destroy while in Moksha, Nirvana, Kaivalya, Sahaja, Jivanmukta, call it whenever you want, all are labels pointing to "that" from a different perspective.
I believe that people who have attained Nirvana or Moksha, be it the Buddha Shakyamuni, Sri Ramana Maharshi or any similar person, they are immortals as consciousness, but died as body-mind. Disciples of Ramana Maharshi were crying that their guru is departing from this life, and he said to them, "stop being stupid I'm not going anywhere", the body is dying, but "that" is immortal. See it like this, one cell of your body died, but you are the entire body and still alive, you do not identify yourself with a cell (and the cell certainly have a sense of individuality and fighting for its survival).... Ramana Maharishi as body-mind/cell died, but the true Ramana as body will live forever.
You have a plethora of yogins and maha-siddhas who have attained sahaja, occult powers, and immortality, some famous names are Mahavatar Babaij (the founder of Kriya Yoga School), Sri Gorakhnath (the ascetic hatha yogin), Sri Matsyendranath (the revivalist of Hatha Yoga and the founder of the KAULA yogini cult and the Kaula tradition-whoch is mostly associated with Vamamarga and sexual tantras + bodily mudras), you have Saraha the founder of Mahamudra, the great yogin Milarepa, the famous Naropa (six yogas of Naropa), Virupa... and many many others.
The point is apparently you can achieve the highest state and still maintain a sort of individuality, you can still operate, create and destroy while in Moksha, Nirvana, Kaivalya, Sahaja, Jivanmukta, call it whenever you want, all are labels pointing to "that" from a different perspective.