Ramana Maharshi stated that Shankara’s text Vivekachudamani contains in detail all the points required for a seeker of liberation ‘thereby directing them to the true and direct path‘.
Vivekachudamani contains 580 verses. Ramana Maharshi evidently placed this text in high regard, so much so that he translated the entire text into Tamil for those who could not read or understand the original Sanskrit. He also selected what he felt were the ten most important verses, which are as follows:
The ten most Significant Verses From Sri Sankara’s Vivekachudamani
As selected by Sri Ramana Maharshi
1. Among things conducive to Liberation, devotion (Bhakti) holds the supreme place. The seeking after one’s real nature is designated as devotion. (Verse 31)
2. The Supreme Self, the eternal, indivisible, non-dual Consciousness, the Witness of buddhi and the rest, is other than the real (Sat) and the unreal (asat), and is the ultimate significance of the notion conveyed by the term ‘I’. It is the immediate Reality, the embodiment of Bliss. (Verse 351)
3. Different from matter (prakriti) and its modifications is the Supreme Self, of the nature of pure Knowledge. It is Absolute and directly manifests the entire gross and subtle universe, in waking and other states, as the substratum of the steady sense of egotism. It manifests Itself as the Witness of the intellect (buddhi). (Verse 135)
4. That which clearly manifests itself in the waking, dream and deep sleep states; that which shines inside uniformly and continuously as I-I; witnesses the ego, the intellect etc, which are of different forms and modifications; which shines as Eternal bliss (nitya ananda) and consciousness (chit), know this, within your heart, as your own Self. (Verse 217)
5. With a regulated mind and a purified intellect, directly know yourself as the essential Self, in the form ‘This I Am’. Cross the shoreless ocean of worldy existence (samsara) with its waves of births and deaths. Firmly established as Brahman, which is your own true essence, be blessed (Verse 136)
6. The self-shining witness (sakshi) of everything, this Atman shines eternally, in the sheath of the intellect (vijnanakosha). Making this Atman, which is distinct from the unreal, the aim of contemplation, meditate upon It as your own Self, eliminating all other thoughts (Verse 380)
7. Extremely subtle is the Truth of the Self Supreme, and it is not discernible to the gross vision (of the mind). It is knowable to the noble-minded of very pure intellect, through samadhi, brought about by an extraordinarily subtle mind. (Verse 360)
8. Thus purified by constant practice when the mind merges with Brahman, then Samadhi passes from the Savikalpa stage [where subject-object distinction exist] to the Nirvikalpa stage [where no subject-object duality exists], leading directly to the experience of the Bliss of Brahman, the Non-dual. (Verse 362)
9. By this [Nirvikalpa] Samadhi are destroyed all the knots of vasanas and all karma is destroyed. One‘s Real Nature (swarupa) manifests spontaneously and effortlessly, forever, everywhere and always, within and without. (Verse 363)
10. In the cave of the intellect, there is the Brahman, the Supreme non-dual Reality, distinct from [relative] truth (sat) and untruth (asat). One who dwells in this cave as Brahman has no rebirth*. (Verse 266)
*Tom: The literal rendering of this last line of verse 266 is a play on the word ‘cave’ and states ‘One who dwells in this cave as Brahman does not enter into the cave of the body’. The ‘word ‘cave’ is used in the Upanishads to describe the location of Brahman, whilst ‘cave of the body’ refers to the mother’s womb, which in turn refers to rebirth in samsara and continued suffering.
Sri Ramana Maharshi also said that the entirety of Advaita Vedanta can be found in in verse 170 of Vivekacudamani:
170. In dreams, when there is no actual contact with the external world, the mind alone creates the whole universe consisting of the experiencer, etc. Similarly in the waking state also, there is no difference. Therefore all this [phenomenal universe] is the projection of the mind.