Watch therefore, for you know neither the day nor the hour in which the Son of Man is coming. (Matthew 25:13)
These words conclude the parable of the ten virgins. Five were ready for the return of Christ and five were not. The five who were not prepared wanted something they did not have (what the five who were ready had - Jesus Christ). When the finally went to get it, it was too late.
We must be prepared for the return of Jesus Christ. In the parable those who were prepared were allowed into the presence of Jesus Christ - those who were not ready were denied access to the banquet!
We must first be ready for the return of Christ and secondly, we must be looking and prepared for the return of Christ!