The Mass unites us to Heaven and to each other.
Regardless of whatever manifestation it takes, be it adventure or justice or peace or holiness, the desires of our hearts will be fulfilled by the Lord, partially now and perfectly on the last day. May that day come quickly! Come, Lord Jesus!
Jesus makes all things new.
Jesus' kingdom is not of this world, so we need to focus on Heaven much more than we focus on Earth.
If we do not pray for Jesus to return, does that reveal a deficiency in our love for him?
There is a lot more to life than just getting to Heaven. Unity with God begins now, in this life.
Heaven is the event of union with God, which begins now. God will recreate the "heavens and the earth".