Sri Muruganar was one of the most important of Sri Ramana Maharshi’s devotees: he spent over 20 years being lovinginly devoted to his Guru, Sri Ramana, and he was, to my knowledge, the only living person who Sri Ramana said had realised the Self.
In the wonderful text Sri Guru Ramana Prasadam, Sri Muruganar writes verse after verse after verse explaining how through his Guru’s Grace and Teachings he too came to fully realise the Self.
On page 137 he writes about the true nature of the world or universe, as follows:
‘The viewpoint [that there is] a phenomenal world is given as a provisional hypothesis principally for those of low and middling attainment, who are the vast majority, and who do not have both an intense longing to realise the truth and a total absense of desire for sense enjoyments, resulting from perceiving the inherent defects [of those sense enjoyments].
‘In the scriptures themselves, enlightened Jnanis proclaim that the world appears to the ego-mind – formed by the know joining consciousness with the insentient (cit-jada granthi) – and that the Self remains in total union with that world.
However, in truth, nothing exists apart from the one Self. Hence, from the ultimate viewpoint, it remains unattached, there being nothing other than itself – like the underlying screen in a cinama show.‘