On Pentecost, the Holy Spirit was poured out abundantly, fulfilling Christ's Passover and fully revealing the Holy Trinity. Since that day, the Kingdom announced by Christ has been open to those who believe in him, who already share in the communion of the Trinity through faith. The Spirit’s first gift is God’s love, poured into our hearts; through this love our sins are forgiven and the baptized are restored to the divine likeness lost through sin. In our daily lives, let us receive this gift with gratitude and rely on the Spirit’s power, so that we may bear the fruits of love, joy, peace, patience, kindness, goodness, faithfulness, gentleness, and self-control. The more we renounce ourselves, the more we walk by the Spirit.
In the Catechism, we learn that the Church is the Body of Christ and the Temple of the Holy Spirit. The mission of Christ and the Holy Spirit is brought to completion in the Church, drawing Christ’s faithful into communion with the Father in the Holy Spirit. The Church does not simply add to Christ’s mission; in her whole being and members, she is sent to announce, bear witness to, make present, and spread the mystery of communion with the Holy Trinity. Through the Church’s sacraments, Christ gives his Holy and sanctifying Spirit to the members of his Body, bringing forth new life in Christ according to the Spirit. As we reflect together, we can give thanks that the Spirit helps us in our weakness, leads us to Christ, and draws us toward deeper communion with God.
¶ 732
On that day, the Holy Trinity is fully revealed. Since that day, the Kingdom announced by Christ has been open to those who believe in him: in the humility of the flesh and in faith, they already share in the communion of the Holy Trinity. By his coming, which never ceases, the Holy Spirit causes the world to enter into the "last days," the time of the Church, the Kingdom already inherited though not yet consummated.