One of the interesting parts of the Gospel was the fact that individual preparedness was quite important - it wasn't something you could share, nor was it something you could borrow. You, personally, have to be prepared.
The Church of Scotland states:
The parable has over the years been victim to detailed allegorical interpretation, but the main point is surely about being ready and prepared for the coming of the Lord, a day that is unknown in time, and the oil is representative of the good works that show the dedication, preparedness and attentive waiting for the day when the Lord will return and call his own.Are you awake? Are you aware that the time of His choosing could occur at any time? Are you prepared?