I have always loved this little story from an essay by Brennan Manning. Hope you do, as well.
"One day Saint Francis and Brother Leo were walking down the road.
Noticing that Leo was depressed, Francis turned and asked: 'Leo, do you know what it means to be pure of heart?'
'Of course. It means to have no sins, faults or weaknesses to reproach myself for.'
'Ah,' said Francis, 'now I understand why you're so sad. We will always have something to reproach ourselves for.'
'Right,' said Leo. 'That's why I despair of ever arriving at purity of heart.'
'Leo, listen carefully to me. Don't be so preoccupied with purity of heart. Turn and look at Jesus. Admire him. Rejoice that he is what he is - your Brother, your Friend, your Lord and Savior. That, little brother, is what it means to be pure of heart. And once you've turned to Jesus, don't turn back and look at yourself. Don't wonder where you stand with him.
The sadness of not being perfect, the discovery that you really are sinful, is a feeling much too human. It even borders on idolatry. Focus your vision outside yourself on the beauty, graciousness and compassion of Jesus Christ. The pure of heart praise him from sunrise to sundown. Even when they feel broken, feeble, distracted, insecure and uncertain, they are able to release it into his peace. A heart like that is stripped and filled - stripped of self and filled with the fullness of God. It is enough that Jesus is Lord.'
After a long pause, Leo said, 'Still, Francis, the Lord demands our effort and fidelity.'
'No doubt about that,' replied Francis. 'But holiness is not a personal achievement. It's an emptiness you discover in yourself. Instead of resenting it, you accept it and it becomes the free space where the Lord can create anew. To cry out, 'You alone are the Holy One, you alone are the Lord,' that is what it means to be pure of heart. And it doesn't come by your Herculean efforts and threadbare resolutions.
'Then how?' asked Leo.
"Simply hoard nothing of yourself; sweep the house clean. Sweep out even the attic, even the nagging painful consciousness of your past. Accept being shipwrecked. Renounce everything that is heavy, even the weight of your sins. See only the compassion, the infinite patience, and the tender love of Christ. Jesus is Lord. That suffices. Your guilt and reproach disappear into the nothingness of non-attention. You are no longer aware of yourself, like the sparrow aloft and free in the azure sky. Even the desire for holiness is transformed into a pure and simple desire for Jesus.'
Leo listened gravely as he walked along beside Francis. Step by step he felt his heart grow lighter as a profound peace flooded his soul."