We have biblical precedent to pray for God’s power in our lives. For example, Paul prays this way for the Ephesians in 3:16 – that according to the riches of his glory he may grant you to be strengthened with power through his Spirit in your inner being.
The question remains why? The answer comes in v. 17 – so that Christ may dwell in your hearts through faith.
The key to understanding what Paul means by this purpose lies within the word dwell. D. A. Carson, in his book A Call to Spiritual Reformation, observes:
The verb rendered “to dwell” is a strong one. Paul’s hope is that Christ will truly take up his residence in the hearts of believers, as they trust him (that’s what “through faith” means), so as to make their hearts his home. . . . Make no mistake: when Christ first moves into our lives, he finds us in very bad repair. It takes a great deal of power to change us; and that is why Paul prays for power. He asks that God may so strengthen us by his power in our inner being that Christ may genuinely take up residence within us, transforming us into a house that pervasively reflects his own character (Baker, 1992, pp. 186-87).
Pray for power in your own life and in the lives of others to this end – that Christ may dwell in your hearts through faith.