"The closed door is a poignant reminder that 'this life is the day for men to perform their labors'. It would be foolish to procrastinate the day of our repentance until the midnight hour or to leave this life without oil. Just as oil is not purchased at midnight, neither is righteousness developed in an instant.
"...The fact that the five foolish virgins knocked, expecting to enter the marriage supper, indicates one of two things: (1) they thought they could prepare themselves after the Bridegroom came, or (2) knowing that they at first had not been prepared to enter, they were hoping for mercy. Either way, the door was shut," (Elder Lynn G. Robbins, "Oil in Our Lamps," Ensign, June 2007).