synesthesia
Heschel in Yiddish and HebrewWednesday, March 14, 2012 by Yehudah Mirsky | Jewish Ideas Daily » Daily Features
Standing at Sinai, "All the people were seeing the thunder" (Exodus 20:15), seeing the sounds. The word "revelation" would be somewhat misleading, since nothing was unveiled: The mountain was wreathed in cloud and smoke.