On the fortieth day after the Resurrection, Christ ascended from this visible earth to the invisible Heaven before the eyes of his Mother and his few disciples and followers (acts 1:9-11). Leaving his disciples, the Lord told them that He was not going away forever, that he would return to judge the world. Christ did not leave the apostles alone on this earth. He promised them that the Holy Spirit would come to them and never leave them. The Lord directly calls Him a Comforter: And I will beseech the Father, and will give you another Comforter, that he may be with you forever, the spirit of truth, Which the world cannot receive, because it does not see Him and does not know Him; but you know Him, for He is with you and will be in you (Jn 14:16-17).

When He comes, something completely new will appear in this world. There will be a Church that will live by the Holy Spirit and will be headed by Christ Himself. This Church no one will ever be able to overcome. It will exist until the very end, comforting anyone who wants to be with Christ, helping on his life path, transforming his soul and body with its sacraments. The Church is the most precious gift given to man by God. This is the Body, the organism in which the life of Christ flows. And this organism is created by the Holy Spirit, as the Apostle Paul directly writes about it: For as the body is one, but has many members, and all the members of one body, although there are many of them, make up one body, so is Christ. For all of us have been baptized into one body by one Spirit, Jews or Greeks, slaves or free, and all are filled with one Spirit (1 Cor 12: 12-13).

What did the apostles do after the ascension of Christ?
The disciples and followers of Christ returned to Jerusalem, waiting for the fulfillment of the promise that the Lord had given them. About the period between the events of the ascension of the Lord and the Descent of the Holy spirit, the Apostle Luke tells very little. However, this is enough to imagine the state of the followers of the God-man, to see already in this period of “waiting” the emerging features of the future Church. All of them, it is said in Acts, were United in prayer and supplication, with some of the wives and Mary, the Mother of Jesus, and with his brothers (acts 1: 14).

It is the General unity and indissolubility of the first Christians that will be emphasized by the Apostle Luke and later-after Pentecost. And this is no accident. Thus, the Apostle constantly directs the reader’s view to the most important condition and meaning of life in the Church: the unity of believers overcomes the atomicity and “dispersion” of individual individuals. It is within the Church that they find the fullness of mutual communication.