Immediately an image came to mind...
Do you ever do that? Do you soak the pots and pans that are impossibly dirty, to make them easier to clean? The water and soap softens those stuck on food particles, and in the morning, when the soaking is done, what was impossible, now is easy.
I think we all have some of those stubborn places in our hearts that could do with a little God-soaking, don't you? Some empty places that could use a little God-filling, too.
I think it means that God has heard my prayers and answered...be patient...I'm working on it...but he's not yet ready to be scrubbed--he's soaking.
So I will continue to pray, knowing that right now, God is soaking that hard heart in His grace, drenching it in love, preparing that stubborn heart to be cleaned. Knowing that sometime soon, that breakthrough will come.