Rest is a decision we make. Rest is choosing to do nothing when we have too much to do, slowing down when we feel pressure to go faster, stopping instead of starting. Rest is listening to our weariness and responding to our tiredness, not to what is making us tired. Rest is what happens when we say one simple word: No!
Spirituality isn't about being finished and perfect; spirituality is about trusting God in our unfinishedness.