
The Ascension is celebrated this Thursday where we live -- for some this coming Sunday.
The Preface prayer for the Ascension offers a brief theological summary of what the Church celebrates on this 40th day after Easter. Check out the verbs. The theology is in the verbs!

Mediator between God and man, judge of the world and Lord of hosts, he ascended not to distance himself from our lowly state but that we, his members might be confident of following where he, our Head and Founder, has gone before. Therefore, overcome with paschal joy, every land, every people exults in your praise and even the heavenly Powers, with angelic hosts,
sing together the unending hymn of your glory, as they acclaim:
Holy, holy, holy Lord, God of power and might, heaven and earth are full of your glory. Hosanna in the highest. Blessed is he who comes in the name of the Lord. Hosanna in the highest!