We use the words 'to get fit' mostly in connection with physical exercise. But what if they actually implied - "to be ready" (in a spiritual sense?) This is what I make of the following words from the Message:
"His Holy Spirit, moving and breathing in you, is the most intimate part of your life, making you fit for himself. Don't take such a gift for granted." - Ephesians 4
Let us remember that the Spirit of God living and working in us, is helping us become more and more ready for the work that God has for us. We can either work with the Spirit in this process or against the Spirit.
Just remember that even though we may not see results immediately, God is working in and through us.