And then they will see the Son of Man coming in a cloud with power and great glory. (Luke 21:27 ESV)
This song relates a deep longing to see Jesus finally returning as He promised he would. At the end of the age Jesus comes to get His bride—the Church—who has made herself ready (Revelation 19:7).
This is the greatest moment of joy before the church, and I feel like Ascend The Hill somehow captures the joy and the longing and earnestness of the Christian looking forward today day.