This passage from Thomas a Kempis' classic devotional The Imitation of Christ struck me this morning as being very beautiful and inspiring. (Comments in quotes are mine!) The kingdom of God is the peace and joy of the Spirit

Turn to the Lord with your whole heart and leave behind this wretched world. Then your soul shall find rest. For the kingdom of God is the peace and joy of the Holy Spirit. If you prepare within your heart a fitting dwelling place, Christ will come to you and console you.

  His glory and beauty are within you, and he delights in dwelling there. The Lord frequently visits the heart of man. There he shares with man pleasant conversations; welcome consolation, abundant peace and a wonderful intimacy.

  So come, faithful soul. Prepare your heart for your spouse to dwell within you. For he says: If anyone loves me, he will keep my word and we shall come to him and make our dwelling within him.

  Make room for Christ. When you possess Christ you are a rich man (or woman!), for he is sufficient for you. He himself, shall provide for you and faithfully administer all your cares. You will not have to place your hope in men. Put all your trust in God; let him be both your fear and your love. He will respond on your behalf and will do whatever is in your best interest.

  You have here no lasting city. For wherever you find yourself, you will always be a pilgrim from another city (the Heavenly Jerusalem). Until you are united intimately with Christ, you will never find your true rest.

  Let your thoughts be with the Most High and direct your prayers continually to Christ. If you do not know how to contemplate the glory of heaven, take comfort in the passion of Christ, and dwell willingly in his sacred wounds. Endure with Christ, suffer for him, if you wish to reign with him.

  Once you have entered completely into the depths of Jesus, and have a taste of his powerful love, then you will not care about your own convenience or inconvenience. Rather you will rejoice all the more in insults and injuries, for the love of Jesus makes a man scorn his own needs.

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Be gracious, Lord, to us who serve you,

  and in your kindness increase your gifts of grace within us:

so that, fervent in faith, hope and love,

  we may be ever on the watch

  and persevere in doing what you command.

Through our Lord Jesus Christ, your Son,

  who lives and reigns with you and the Holy Spirit,

  one God, for ever and ever.

Amen