Exodus 25:6 NKJV
oil for the light, and spices for the anointing oil and for the sweet incense;
Oil is symbolic of the Holy Spirit and the Holy Spirit has come to teach us and guide us into all truth. Hence we see "oil for light." We see that oil was also symbolic of the anointing. The anointing was associated with the Holy Spirit, but more specifically, it represents authorization, office or position and sanctification.
1 John 2:20 says, "But you have an anointing from the Holy One, and you know all things."
May we take advantage of the Holy Spirit and the anointing that has been given to us today.