The supernatural can never be scientifically proven because it ceases to be “supernatural” once sufficient scientific proof is obtained. It is then considered to be a completely “natural” phenomenon.
I remember an answer which when quite young I was prompted to make to a valued adviser who was wont to importune me with the dear old doctrines of the church. On my saying, What have I to do with the sacredness of traditions, if I live wholly from within? my friend suggested--'But these impulses may be from below, not from above.' I replied, 'They do not seem to me to be such; but if I am the devil's child, I will live them from the devil.