Let not your hearts be weighed down with a life of pleasure, drunkenness and worldly care. Luke 21:34
When we see the fig tree and all the trees, their leaves begin to sprout, we know that summers is already near. In the same way when we see all kinds of daily events happening in the world, the kingdom of God is near too.
Jesus warns us to be on guard, lest that day catch us suddenly as a trap. For it will come upon all the inhabitants of the whole earth. But watch at all times and pray that we may be able to stand before the Son of Man. Be on guard is an invitation from Christ not only to those who will know the time and that day, but it is for everyone, throughout the history of the church. Be on guard also means to watch and pray. This is from the interior attitude of the Christians, always on guard, we move to a church practice : Vigils and prayers which continue while the world is asleep. Pray at all times as the Spirit inspires you. Keep watch together with sustained prayer and supplication for all the brothers. (Ephesians 6:18)
Prayer and vigils serve to ask for God’s assistance in the great tests preceding the coming of Christ : To avoid errors and deceit. This lawless one will appear with the power of Satan, performing miracles and wonderful signs at the service of deception (2 Thessalonian 2:9). So as to remain holy and blameless before God that on the day that Jesus, our Lord will come with all his saints.
Pray for it and prepare for it.