Paul continued to ask that the eyes of their understanding be opened up (enlightened) to know the hope to which God has called them, the riches of Gods glorious inheritance. It would take supernatural intervention for us to fully understand what God has given to us in Jesus Christ. The hope of his calling could be seen as the purpose for which God has called us. This can also be seen as hope for the future.
David Guzik in his commentary on Ephesians 1 sums up very well “the hope of His calling” from a futuristic point of view. According to Guzik the believer has a glorious future of resurrection, eternal life, and freedom from sin, perfected justification, and glorious elevation above the angels themselves (Dvvid Guzik-http://www.blueletterbible.org/commentaries).
“According to the working of his mighty power” This mighty power is the same power that raised Christ from the dead.
Although Paul prayed this prayer for the Ephesians it is relevant for us today as well as for our children.
Lord, please my children the Spirit of wisdom and revelation, and the knowledge of You. Help that their eyes will be opened that they will know the hope to which you have called them, the riches of Your glorious inheritance in the saints and His Incomparably great power for us who believe. In Jesus’s name Amen