I go to Him that sent Me; but because I have spoken these things to you, sorrow hath filled your heart, alleluia. (Magnificat Antiphon) “For if I go not, the Paraclete will not come to you: but if I go, I will send Him to you.” (Gospel)
The Church rejoices because Christ is risen and has delivered us (Alleluia); so she sends up cries of joy (Introit), and sings the praises of God (Offertory).
“I am the good shepherd: and I know Mine, and Mine know Me, as the Father knoweth Me, and I know the Father: and I lay down My life for My sheep,” and, “The good shepherd giveth his life for his sheep.” (...
Haec dies, quam fecit Dominus: exsultemus, et laetemur in ea - This is the day which the Lord hath made: let us rejoice and be glad in it.
The Triumphal Procession: Hosanna in the Highest.