They didn't have oil. There was not light there. After probation is closed, oil is not available. After your chance is over it is too late to seek salvation. If you wait until the time of trouble of the last minute to get your Saving relationship with Jesus, you have waited too long.
Today is the day of salvation.
Today is the day that you need to make your life right with Jesus. If you're thinking, I'm really not all right, I've got all these things that I'm doing. I'm not really the Christian I ought to be. If you wait too late, you'll be a foolish, lost person, just like these foolish virgins. You need to walk with Him.