He knows that his mother loves him and will never leave him. She has only given him a time to be loved by others without her direct presence, but he knows she will soon come and take him home where she will care for him.
As surely as Jesus came the first time as was promised, He will come again.
Malachi 4:1–6 “Surely the day is coming; it will burn like a furnace. All the arrogant and every evildoer will be stubble, and that day that is coming will set them on fire,” says the LORD Almighty. “Not a root or a branch will be left to them. 2 But for you who revere my name, the sun of righteousness will rise with healing in its wings. And you will go out and leap like calves released from the stall. 3 Then you will trample down the wicked; they will be ashes under the soles of your feet on the day when I do these things,” says the LORD Almighty. 4 “Remember the law of my servant Moses, the decrees and laws I gave him at Horeb for all Israel. 5 “See, I will send you the prophet Elijah before that great and dreadful day of the LORD comes. 6 He will turn the hearts of the fathers to their children, and the hearts of the children to their fathers; or else I will come and strike the land with a curse.”
Yes, the Lord is coming again and nothing will ever be the same again.
Revelation 22:17–21 The Spirit and the bride say, “Come!” And let him who hears say, “Come!” Whoever is thirsty, let him come; and whoever wishes, let him take the free gift of the water of life. 18 I warn everyone who hears the words of the prophecy of this book: If anyone adds anything to them, God will add to him the plagues described in this book. 19 And if anyone takes words away from this book of prophecy, God will take away from him his share in the tree of life and in the holy city, which are described in this book. 20 He who testifies to these things says, “Yes, I am coming soon.” Amen. Come, Lord Jesus. 21 The grace of the Lord Jesus be with God’s people. Amen.