Because of his transcendence, God cannot be seen as he is, unless he himself opens up his mystery to man's immediate contemplation and gives him the capacity for it. The Church calls this contemplation of God in his heavenly glory "the beatific vision":
How great will your glory and happiness be, to be allowed to see God, to be honored with sharing the joy of salvation and eternal light with Christ your Lord and God, . . . To delight in the joy of immortality in the Kingdom of heaven with the righteous and God's friends.
Source: Catechism of the Catholic Church (Vatican.va)