In the natural, water and oil don’t mix but separate. Spiritually, in the Bible, both water and oil are symbols of the Holy Spirit. They are not separate, right. so they should mix. My conclusion, based on scientific fact, is that when water and oil are put together, the water pushes the oil drops together and causes the oil to rise to the surface.
My artwork “Water and Oil Anointing” depicts the water which is the Word of God, and the Oil which represents the Holy Spirit. When both are put together the anointing manifests (as represented by the fiery pink colour).