score:3
What is the beatitude of heaven?
Catechism of the Catholic Church 1027 answers:
This mystery of blessed communion with God and all who are in Christ is beyond all understanding and description. Scripture speaks of it in images: life, light, peace, wedding feast, wine of the kingdom, the Father's house, the heavenly Jerusalem, paradise: "no eye has seen, nor ear heard, nor the heart of man conceived, what God has prepared for those who love him."1
1. 1 Cor 2:9.
Thus it is the blessed ( = supremely happy) 1) communion with God and 2) communion with all who are in Christ.
Catholic theology expands on this by calling the former "Essential beatitude" and the latter "Accidental beatitude". And part of the accidental beatitude is:
They delight greatly in the company of Christ, the angels, and the saints, and in the reunion with so many who were dear to them on earth2.
2. cf. Accidental beatitude in Heaven | New Advent
They way I see it, it will be coming home to one great big family reunion, wonderful and beyond all telling. cf. Matt 8:11:
11 I tell you, many will come from east and west and sit at table with Abraham, Isaac, and Jacob in the kingdom of heaven[.]