Song is not a luxury, but a necessary way of being in the world. If you are cut off, in pain, estranged, numb — sing, give voice to anything. It needn't sound pretty. Simply, bravely, open despite the difficulty, and let what is in out, and what is out in. Sing and your life will continue.
When you lose sight of each other as sacred souls on a sacred journey, then you cannot see the purpose, the reason, behind all relationships.