Grief causes weakness. It feels like your bones are crushed and you are just too weak/tired to do anything. Most times, you give in to the tears and let them fall freely from your eyes because your heart aches within you and you don't know what else to do.
This is a prayer for you:
Good God, you promised to give strength to the weak and also to come through for us at our weakest moment. Currently, this phase of my life is draining and I’m just too weak to do anything. Gracious Father, I ask for divine strength, the strength that encompasses the physical, psychological, mental, and spiritual, Amen.