Some of my most profound experiences during sitting meditation, come from connecting with outside sounds.
Sounds coming to meet the ears, and acting as bridge between narrow self and limitless outer world.
This morning, listening to tick-tack, I had fuzzy sense of awareness being somewhere between clock, and ears. Gone, the mind-created boundary between physical body and the atmosphere surrounding it . . . and in its place, the sweet freedom from not not knowing, 'where is sound?'
I am curious, when you sit, and you close your eyes, how is your experience of sounds?