A day when the Lord will come again. We are told that He will come in just the same way as He left (Acts 1:11).
He will descend from heaven with the shout of an Archangel and the trumpet of God (1 Thess. 4:16-17). The dead in Christ shall rise and those who are alive and are faithful will rise up to meet them in the air. And so we will always be together with the Lord.
Now is the time to think about this day. Now is the time to think about how we live our lives.
If we want to be a part of that day we need to serve the Lord.
Think about it.