Here in a series of verses taken from Shankara’s masterpice Vivekachudamani, the Self is described and the basic technique of meditation is given. We can see we are to meditate upon ourselves as being Brahman, which is eternal, ever-present, timeless, beyond all names and forms and devoid of names and forms. It is the Source of all. It is unmoving, like the ocean without any waves. It, being formless, cannot be known by the intellect or sense organs. It is unmoving, unchanging, causeless, non-dual, needs no other support and has no parts or components.

254. That which is beyond caste and creed, family and lineage; devoid of name and form, merit and demerit; transcending space, time and sense-object – that Brahman art thou, meditate on this in thy mind.

255. That Supreme Brahman which is beyond the range of all speech, but accessible to the eye of pure illumination; which is pure, the Embodiment of Knowledge, the beginningless entity – that Brahman art thou, meditate on this in thy mind.

256. That which is untouched by the sixfold wave; meditated upon by the Yogi’s heart, but not grasped by the sense-organs; which the Buddhi [intellect] cannot know; and which is unimpeachable – that Brahman art thou, meditate on this in thy mind.

257. That which is the substratum of the universe with its various subdivisions, which are all creations of delusion; which Itself has no other support; which is distinct from the gross and subtle; which has no parts, and has verily no exemplar – that Brahman art thou, meditate on this in thy mind.

258. That which is free from birth, growth, development, waste, disease and death; which is indestructible; which is the cause of the projection, maintenance and dissolution of the universe – that Brahman art thou, meditate on this in thy mind.

259. That which is free from differentiation; whose essence is never non-existent; which is unmoved like the ocean without waves; the ever-free; of indivisible Form – that Brahman art thou, meditate on this in thy mind.

260. That which, though One only, is the cause of the many; which refutes all other causes, but is Itself without cause; distinct from Maya and its effect, the universe; and independent – that Brahman art thou, meditate on this in thy mind.

261. That which is free from duality; which is infinite and indestructible; distinct from the universe and Maya, supreme, eternal; which is undying Bliss; taintless – that Brahman art thou, meditate on this in thy mind.

262. That Reality which (though One) appears variously owing to delusion, taking on names and forms, attributes and changes, Itself always unchanged, like gold in its modifications – that Brahman art thou, meditate on this in thy mind.

263. That beyond which there is nothing; which shines even above Maya, which again is superior to its effect, the universe; the inmost Self of all, free from differentiation; the Real Self, the Existence-Knowledge-Bliss Absolute; infinite and immutable – that Brahman art thou, meditate on this in thy mind.

The above excerpt was taken from the post: Shankara: How to Meditate for Self-Realisation