"Heidegger suggests that we experience the saying of language as a shining forth:
'It lets what is coming to presence shine forth, lets what is withdrawing into absence vanish. The saying is by no means the supplemental linguistic expression of what shines forth; rather, all shining and fading depend on the saying that shows.' (pp. 413-414).
But what is the basis and origin of this possibility of saying? The happening of saying in the clearing, its allowing things to shine forth, can also be called an 'owning.' Owning is the event of a thing’s coming into its own, of its showing itself as itself. Heidegger also calls it 'propriating,' 'en-owning,' or Ereignis:
'Propriation gathers the rift-design of the saying and unfolds it in such a way that it becomes the well-joined structure of a manifold showing. (p. 415)'"
— "Heidegger: On the Way to Language," by Paul Livingston
Page references are apparently to Heidegger's Basic Writings, edited by David Farrell Krell, HarperCollins paperback, 1993.
See also Shining Forth.