Boris Pasternak said this quote

An old Russian folk song is like water held back by a dam. It looks as if it were still and were no longer flowing, but in its depths it is ceaselessly rushing through the sluice gates and the stillness of its surface is deceptive. By every possible means, by repetitions and similes, the song slows down the gradual unfolding of its theme. Then at some point it suddenly reveals itself and astounds us. That is how the song’s sorrowing spirit comes to expression. The song is an insane attempt to stop time by means of its words.