In Celebration of Discipline, Richard Foster writes of disciplined grace as a way to live consciously:
In this regard it would be proper to speak of [spiritual disciplines as] “the path of disciplined grace.” It is “grace” because it is free; it is “disciplined” because there is something for us to do. In The Cost of Discipleship Dietrich Bonhoeffer makes it clear that grace is free, but it is not cheap. The grace of God is unearned and unearnable, but if we ever expect to grow in grace, we must pay the price of a consciously chosen course of action which involves both the individual and group life.
In response to the question of the harm in “mindless” fun, I respond that, since as Christians we were bought at a price, our time is not our own and should be used effectively — as opposed to efficiently — for God’s glory.
That’s not to say there is no place for fun or relaxation in the Christian life. But this we must do in the context of conscious living: that is, we should relax not for lack of other things to do or excessive fun for its own sake, but instead to restore ourselves to continue our purposes.
This brings us back to our original point. Our life is not our own. We were bought at a price. Everything is permissible but not beneficial. Therefore, don’t shoot for the minimum to just get by: shoot for excellence. Use your talents given to you as effectively as you can.