Escalators exert an irresistible force to aid people in moving from one level to another. You can try to go against the flow of the escalator - you can try to elevate yourself, but you'd be better off taking the stairs. God's grace is something like an escalator. It is constantly flowing. God's grace can be cooperated with, or It can be resisted. Your experience of God's grace will be drastically different depending on whether you are cooperating with it or resisting it.