OC says - "The greatest competitor of true devotion to Jesus is the service we do for Him. It is easier to serve than to pour out our lives completely for Him."
What then, is "pouring out our lives?" Perhaps it is living in complete obedience - not just in what we do, but in who we are, in whom we connect ourselves to. He has told us to remain in Him. Perhaps the pouring out is part of that process.
OC is right. It's all too easy for us to get caught up in serving and forget to remain. Without remaining, we cannot know what obedience is. If we do remain, obedience becomes as natural as rain that is drawn from the oceans, transformed in the atmosphere, and falls in order to sustain life. Perhaps the pouring out of ourselves must happen within that pattern in order to have value.