In the tabernacle, oil was used for anointing furniture and utensils and people, and for giving light by being burned in the lampstand. These two benefits were symbolic of what Paul said was the presence of the Rock – the Christ – with Israel as they traveled in the desert (1 Corinthians 10:1-4).
By His Spirit, He is still wanting to anoint us and give us light. He is the Anointed One (Christ), and He is the Light of the world. His presence with us in our deserts imparts His anointing and His light to us. He wants to use our presence in others’ lives to manifest His anointing and light to them.