I thought of spilling a lot of superlatives (ooh did I ever!) about this song but didn’t want to contaminate it. Judge for yourself. Just be in a quiet space for 8 minutes. Even if you’ve heard it before. . . well, you know. Don’t worry about the religious part – it’s for anyone whose heart is not made of stone.
O Magnum Mysterium, Kings College
There’s a synthetic version by John Serrie that I sort of like just as much, but it’s less organic. So listen to Kings College first.