Heaven is God’s milieu, the dwelling place of the angels and saints, and the goal of creation. With the words “heaven and earth” we designate the whole of created reality. [325-327]
Heaven is not a place in the universe. It is a condition in the next life. Heaven is where God’s will is done without any resistance. Heaven happens when life is present in its greatest intensity and blessedness — a kind of life that we do not find on earth. If with God’s help we arrive someday in heaven, then waiting for us will be “what no eye has seen, nor ear heard, nor the heart of man conceived, what God has prepared for those who love him” (1 Cor 2:9)