They will reveal the essential spirituality of all scientific work which is motivated by love of humanity and its welfare, which relates science and religion and brings to light the glory of God through the medium of His tangible world and His works. They have a most interesting function but one which will not become evident for a long time–not until the building forces of the universe are better understood. This will be co-incident with the development of etheric vision.
(Discipleship, I, p.35-40)