We become fruitful by grace; we persevere by grace; we mature by grace; by grace we grow to love one another the more, and by grace we cherish holiness and a deepening knowledge of God. Therefore Paul reminds his readers at the end of his prayer that everything he has asked for is available only on the basis of grace. The Savior himself cannot be glorified in our lives, nor can we be finally glorified, apart from the grace that he provides.
We are not to think of ourselves as basically independent and on the right track, but occasionally in need of a little input from the Deity, a little blessing called down by an appropriately formulated prayer. That sort of view is almost akin to pagan magic; it is only a whisker from raw animism.
Carson, D. A. (1992). A call to spiritual reformation: priorities from Paul and his prayers (pp. 60–61). Grand Rapids, MI: Baker Book House