D&C 38

As I previously blogged in reference to the parable of the ten virgins,  the Lord counseled the saints to have -

"...oil with you..."  (Doctrine and Covenants | Section 33:17)

He follows up in revelations -

"...again, I say unto you that the enemy in the secret chambers seeketh your lives.
29 Ye hear of wars in far countries, and you say that there will soon be great wars in far countries, but ye know not the hearts of men in your own land.
30 I tell you these things because of your prayers; wherefore, treasure up wisdom in your bosoms, lest the wickedness of men reveal these things unto you by their wickedness, in a manner which shall speak in your ears with a voice louder than that which shall shake the earth; but if ye are prepared ye shall not fear."  (Doctrine and Covenants | Section 38:28 - 30)

Obviously, the day would come that the philosophies of wicked men would sound louder than the still small voice of the Lord.  The oil then would also symbolize "wisdom in our bosoms".  In other words, we must become wise.  In my mind, through knowledge and experience, understand the mysteries of God.