Never thought of this, but it makes sense: why not ask for the grace to accept God's mercy and abundant love for us? If we can pray "Lord, I believe; help my unbelief," then we can pray for this sort of thing, too.
My identity is in Christ. Though many trials and struggles have tried my life. I will take my identification with no substitutes or generic brand. My identity is in Christ Jesus. He is the Solid Rock on which I stand.