In the natural order, in proportion as the child grows, the more self-sufficient he should become, for some day he will no longer have his parents. In the order of grace, on the contrary, the more the child of God grows, the more he understands that he will never be self-sufficient and that he depends intimately on God. As he matures, he should live more by the special inspiration of the Holy Ghost, who, by His seven gifts, supplies for the imperfections of his virtues to such an extent that his is finally more passive under the divine action than given up to his personal activity. In the end he will enter into the bosom of the Father where he will find his beatitude.

A young person, on reaching maturity, leaves his parents to begin life for himself. The middle-aged man occasionally pays a visit to his mother, but he no longer depends on her as he formerly did; instead, it is he who supports her. On the contrary, as the child of God grows up, he becomes so increasingly dependent on his Father that he no longer desires to do anything without Him, without His inspirations or His counsels. Then his whole life is bathed in prayer; he has obtained the best part, which will not be taken away from him. He understands that he must pray always.

-- Fr. Reginald Garrigou-LaGrange, The Three Ages of the Interior Life