The System of the Vedanta according to Badarayana's Brahma-Sutras and Cankara's Commentary c5.s3.t4.2

c5.s3.t4.2

“and has brought it to ripeness by means of the apprehension of the last letter, flashes before him suddenly in its unity as a single conception. “And this single conception is no reminiscence, referring back to the letters; for the letters are several, and cannot, therefore, be the object of the single conception. This |Sphota, the soul of the word, as we might say,] is [only] recognised again, [not produced], on the occasion of its pronunciation, and is therefore eternal [as well as a unity,] because the conception of the manifold refers only to the letters. Thus the word, [that is, its sense] in the form of the Sphota is eternal, and from it, as that which names, goes forth as that which is to be named, the world, consisting of deed, doer and fruits.”