John 18:36 Reina-Valera 1960 (RVR1960)
36 Jesus answered: My kingdom is not of this world; if my kingdom were of this world, my servants would fight so that I would not be handed over to the Jews; But my kingdom is not from here.
When we become children of God, we accept Jesus in our hearts, obeying our Father, we go from being worldly to spiritual, that is, we move to another plane where the things of the world are no longer important in our lives.
We live more in the things of God than in the earthly world, with heaven being our true home, which is why we will never be completely happy on earth because we are not made for the earth.
In the world we will have moments of joy.
We will capture reflections of lights.
We will live happily and even more, we will have days of peace, but this can not be compared to the happiness that awaits us later on.
Being children of God, the worst thing that could happen to us is to feel at home while being on the earth. We are foreigners and pilgrims in this world.
The misfortune on earth cultivates a hunger for heaven, which makes us look more and more for God to reach salvation and thus earn us heaven.