'heard.' It is therefore meditation only which all those texts enjoin.
In agreement with this a later Sutra also says, 'Repetition more than
once, on account of instruction' (Ve. Su. IV, I, I). That the knowledge
intended to be enjoined as the means of final release is of the nature
of meditation, we conclude from the circumstance that the terms
'knowing' and'meditating' are seen to be used in place of each other in
the earlier and later parts of Vedic texts. Compare the following
passages: 'Let a man meditate on mind as Brahman,' and 'he who knows
this shines and warms through his celebrity, fame, and glory of
countenance' (Ch. Up. III, 18, 1; 6). And 'He does not know him, for he
is not complete,' and 'Let men meditate on him as the Self (Bri. Up. I,
4, 7). And 'He who knows what he knows,' and 'Teach me the deity on
which you meditate' (Ch. Up. IV, 1, 6; 2, 2).

'Meditation' means steady remembrance, i.e. a continuity of steady
remembrance, uninterrupted like the flow of oil; in agreement with the
scriptural passage which declares steady remembrance to be the means of
release, 'on the attainment of remembrance all the ties are loosened'
(Ch. Up. VII, 26, 2). Such remembrance is of the same character (form)
as seeing (intuition); for the passage quoted has the same purport as
the following one, 'The fetter of the heart is broken, all doubts are
solved, and all the works of that man perish when he has been seen who
is high and low' (Mu. Up. II, 2, 8). And this being so, we conclude that
the passage 'the Self is to be seen' teaches that 'Meditation' has the
character of 'seeing' or 'intuition.' And that remembrance has the
character of 'seeing' is due to the element of imagination
(representation) which prevails in it. All this has been set forth at
length by the Vakyakara. 'Knowledge (vedana) means meditation (upasana),
scripture using the word in that sense'; i.e. in all Upanishads that
knowledge which is enjoined as the means of final release is Meditation.