It's not (ha ha snot - pass that over here!) a particular sound, but I guess more of a concept; I really dig sounds that are quiet, yet profound. Like rain against my bedroom window, or my sister saying, "I really dig you" when I tuck her into bed, or Bethoven's Moonlight Sonata on a sad day, or far-away, 2 am thunder on a warm summer evening, or an aria on some PBS special slowly drifting out of my father's room when I wake up from a nightmare, or the rythmic breathing of a loved-one lying next to me that slowly lulls me to sleep.

I guess in a way, they are all the same sound... at least they have the same essence to me.