Leo the Great on the Ascension
Therefore, dearly beloved, let us also rejoice with fitting joy. For the Ascension of Christ is exaltation for us. And whither the glory of the Head of the Church is passed in, thither is the hope of the body of the Church called on to follow. Let us rejoice with exceeding great joy, and give God glad thanks.
This day is not only the possession of paradise made sure unto us, but in Christ our Head we are actually entering into the heavenly mansions above. Through the unspeakable goodness of Christ we have gained more than ever we lost by the envy of the devil. For those whom our venomous enemy cast down from the happiness of their first estate, those same hath the Son of God made to be of one body with himself, and hath given them a place at the right hand of the Father.