Ramana Maharshi became enlightened by realizing that he was neither the body nor the mind. Nisargadatta became self-realized by realizing he wasn't Nisargadatta, that he was never born and would never die.
Yet, those who continue to dream, worry about Gurus and lineages, worship pictures of their Gurus, or make plans to visit Tiruvannamalai hoping there is something magical and mystical there that will aid in their self-realization.
It is alright to have a picture of Ramana Maharshi in front of you, provided each time you look at it, you are reminded that you are not the body or the mind, that both the picture and the seer are just appearances. Going to where Nisargadatta used to live to aid your spiritual journey is pointless compared to remembering his teaching that space, time and the person are all concepts in the mind.
Nisargadatta often used to say that a Guru is just a milestone, he can only point to the obstacles but overcoming those can only be done by the one who is dreaming. Guru merely points that you are dreaming, that you are not what you take yourself to be, waking up from the dream is up to us.
The greatest Guru is the Self, our role is to let It express itself by not getting attached to the mind and its incessant outwardly directed quest in the very forms it has created.
