Enlightened = free from ignorance and misunderstanding, especially regarding spiritual understanding.
Ephesians 1:18-23 (NIV)
18 I pray that the eyes of your heart may be enlightened in order that you may know the hope to which he has called you, the riches of his glorious inheritance in his holy people, 19 and his incomparably great power for us who believe. That power is the same as the mighty strength 20 he exerted when he raised Christ from the dead and seated him at his right hand in the heavenly realms, 21 far above all rule and authority, power and dominion, and every name that is invoked, not only in the present age but also in the one to come. 22 And God placed all things under his feet and appointed him to be head over everything for the church, 23 which is his body, the fullness of him who fills everything in every way.
4 It is impossible for those who have once been enlightened, who have tasted the heavenly gift, who have shared in the Holy Spirit, 5 who have tasted the goodness of the word of God and the powers of the coming age 6 and who have fallen away, to be brought back to repentance. To their loss they are crucifying the Son of God all over again and subjecting him to public disgrace. 7 Land that drinks in the rain often falling on it and that produces a crop useful to those for whom it is farmed receives the blessing of God. 8 But land that produces thorns and thistles is worthless and is in danger of being cursed. In the end it will be burned.
9 Even though we speak like this, dear friends, we are convinced of better things in your case—the things that have to do with salvation. 10 God is not unjust; he will not forget your work and the love you have shown him as you have helped his people and continue to help them. 11 We want each of you to show this same diligence to the very end, so that what you hope for may be fully realized. 12 We do not want you to become lazy, but to imitate those who through faith and patience inherit what has been promised.
13 When God made his promise to Abraham, since there was no one greater for him to swear by, he swore by himself, 14 saying, “I will surely bless you and give you many descendants.” 15 And so after waiting patiently, Abraham received what was promised.
Thank you Father for enlightening us, Your gathered people. Your promise stands. We love You and You love us. Thank You. For Your promise of salvation. Thank You. For reminding us to be diligent to the end. That in You, we have Hope–a Hope that will be fully realized. Through faith. With patience. We await You, O Lord. In Jesus name. Amen