What is up with the oil?

have to admit that I do not fully understand anointing with oil. My human mind cannot understand how oil can affect sickness. I don’t get it, but God does. He instructed Moses to anoint the Tabernacle of God (the place God dwelt):

Then the LORD said to Moses, “Take the following fine spices: 500 shekels of liquid myrrh, half as much (that is, 250 shekels) of fragrant cinnamon, 250 shekels of fragrant cane, 500 shekels of cassia—all according to the sanctuary shekel—and a hin of olive oil. Make these into a sacred anointing oil, a fragrant blend, the work of a perfumer. It will be the sacred anointing oil. Then use it to anoint the Tent of Meeting, the ark of the Testimony, the table and all its articles, the lampstand and its accessories, the altar of incense, the altar of burnt offering and all its utensils, and the basin with its stand. You shall consecrate them so they will be most holy, and whatever touches them will be holy. – Exodus 30:22-29

God no longer dwells in the Tabernacle. Today he dwells in us:

Don’t you know that you yourselves are God’s temple and that God’s Spirit lives in you? – I Corinthians 3:16

So, although I (we) may not fully understand anointing with oil, can we rest in the reality that God understands it? Can we ask for anointing even if our human minds cannot understand it?