Responsability:Priority

As Christians, we have a responsibility to stay awake and live life prepared for anything. I call this our response-ability.

Therefore do not be partners with them. For you were once darkness, but now you are light in the Lord. Live as children of light (for the fruit of the light consists in all goodness, righteousness and truth) and find out what pleases the Lord. Have nothing to do with the fruitless deeds of darkness, but rather expose them. It is shameful even to mention what the disobedient do in secret. But everything exposed by the light becomes visible—and everything that is illuminated becomes a light. This is why it is said:

“Wake up, sleeper,
rise from the dead,
and Christ will shine on you.”

Be very careful, then, how you live—not as unwise but as wise, making the most of every opportunity, because the days are evil. Therefore do not be foolish, but understand what the Lord’s will is. Do not get drunk on wine, which leads to debauchery. Instead, be filled with the Spirit, speaking to one another with psalms, hymns, and songs from the Spirit. Sing and make music from your heart to the Lord, always giving thanks to God the Father for everything, in the name of our Lord Jesus Christ.
~Ephesians 5:7-21 (NIV)

So don't let yourself fall back asleep spiritually. When your life is becoming normal again, when you are no longer in a constant communicated relationship with God, give yourself a spiritual slap across the face. For me, this usually looks like getting myself into a setting with other believers, praying and/or worshiping; it usually is able to bring my focus right back to the creator.

Finally, how are we to spend this time, as we wait for the unknown day and hour of Christ's return? We are called to make disciples. It is a simple fact that we are all called to be missionaries in some way shape or form, no matter how well you are playing the part or how far you are going to enact it. If someone is a Christian, it means that they are also a missionary--they go hand in hand. Jesus never suggested otherwise, so why should we? It doesn't mean traveling from town to town as he did or journeying to other countries like Paul did, but however the Lord leads you to reach an untouched, unsaved soul: that's what we should be striving for.