From Dave Kraft's book, Leaders Who Last (31-32):
The following thoughts from John Ortberg are insightful:
One of the analogies that’s been kind of helpful to me is the difference between a motorboat, a raft, and a sailboat. In a motorboat, I’m in charge. I determine how fast we’re going to go, and in what direction. Some people approach spiritual disciplines that way. If I’m just aggressive enough, if I have enough quiet times, I can make transformation happen on my own.
Some people have been burned by that kind of approach, so they go to the opposite extreme and will say, “I’m into grace.” It’s like they’re floating on a raft. If you ask them to do anything to further their growth, they’ll say, “Hey, no. I’m not into works. I’m into grace. You’re getting legalistic with me.” So they drift. There are way too many commands in Scripture for anybody to think that we’re called to be passive.
On a sailboat, however, I don’t move if it’s not for the wind. I can’t control the wind. I don’t manufacture the wind. Jesus talks about the Spirit blowing like the wind. But there is a role for me to play, and part of it has to do with what I need to discern. A good sailor will discern. Where’s the wind at work? How should I set the sails? Practicing spiritual disciplines is like sailing.
John 15:5 ...apart from me you can do nothing.
Depending on the wind, not cranking up the throttle.
1 Corinthians 9:24 Do you not know that in a race all the runners run, but only one gets the prize? Run in such a way as to get the prize. 25 Everyone who competes in the games goes into strict training. They do it to get a crown that will not last; but we do it to get a crown that will last forever. 26 Therefore I do not run like a man running aimlessly; I do not fight like a man beating the air. 27 No, I beat my body and make it my slave so that after I have preached to others, I myself will not be disqualified for the prize.
Hoisting and setting the sails, not floating on the raft.