Taittirīyopaniṣat 02.15
Then, this verse is also stated: In the beginning, this was non-being. From that, being was born. That self created itself by its own power. Therefore, it is called well-made. What indeed is that well-made? It is essence. Truly, he who attains essence becomes blissful. For who could breathe, who could live, if this space were not bliss? It is this that truly brings bliss.
Taittirīya Bhāshya 02.15
Previously, he who was not attained and was called 'non-existent', known as Nārāyaṇa, upon being attained and called 'existent', became Vāsudeva, the Lord.
Vāsudeva manifested himself as Saṅkarṣaṇa and others. Therefore, that is called the well-done; he is bliss, the very essence arising from that.
Upon attaining this bliss, the liberated person should rejoice and not otherwise. If the radiant Lord were indeed bliss, he would not be otherwise.
Except for the Lord, who else can have common and righteous actions? It is only after attaining happiness that Janardana engages in worldly activities.
One who acts little due to small happiness, but from complete bliss is the doer of all. The afflicted do not act, nor do the deluded, especially.
Therefore, as is the happiness, so is the action, due to complete happiness. Because of having accomplished everything, the supreme Viṣṇu said, therefore (she is) the eternal one.
The supreme teaching of the Chāndogas is: 'One acts only after attaining happiness.' Conversely, if happiness is not attained, one does not act—this too is taught with respect.
That which is caused by the god of complete bliss breathes clearly; he alone causes all the worlds and everything to rejoice.
