Blood and water which come out pierced heart of crucified Jesus are types of the Baptism and the Eucharist (John 19, 33-35)
But when they came to Jesus and saw that he was already dead, they did not break his legs. But one of the soldiers pierced his side with a spear, and at once there came out blood and water.
He who saw it has borne witness -- his testimony is true, and he knows that he tells the truth -- that you also may believe […].
Baptism in the name of Jesus Christ confers the unction of the Holy Spirit
(Acts 1, 4-8)
And while staying with them he charged them not to depart from Jerusalem, but to wait for the promise of the Father, which, he said, "you heard from me, for John baptized with water, but before many days you shall be baptized with the Holy Spirit" […] But you shall receive power when the Holy Spirit has come upon you [...]".
Apparitions to the disciples : Jesus blows the vivifying gift of the Holy Spirit
( John 20, 19-23)
Jesus came and stood among them and said to them, "Peace be with you." When he had said this, he showed them his hands and his side. Then the disciples were glad when they saw the Lord. Jesus said to them again, "Peace be with you. As the Father has sent me, even so I send you." And when he had said this, he breathed on them, and said to them, " Receive the Holy Spirit " […].
The Pentecost: the Holy Spirit given and communicated as a divine Person (Acts 2,1-4)
When the day of Pentecost had come, they were all together in one place. And suddenly a sound came from heaven like the rush of a mighty wind, and it filled all the house where they were sitting. And there appeared to them tongues as of fire, distributed and resting on each one of them. And they were all filled with the Holy Spirit and began to speak in other tongues [...].
What will we make? (Acts 2,37-41)
Now when they heard this they were cut to the heart, and said to Peter and the rest of the apostles, "Brethren, what shall we do?" And Peter said to them, "Repent, and be baptized every one of you in the name of Jesus Christ for the forgiveness of your sins; and you shall receive the gift of the Holy Spirit. […] So those who received his word were baptized [...]
