The third panel represents God the Holy Spirit as revealed in the Book of Acts and the Epistles. Once again the roundelays represent Prophecy; it is through the Spirit of Truth working within us that we are healed, reconciled, and returned to oneness with God the Father, the Creator of creatures great and small --- such as a flower, a bug, a bunny, a ship (wherein are people), a lamb, a fish, two tunicates, and a bear.
There is no embroidery other than within the roundelays, the Holy Spirit being an invisible Helper still at work in our lives today.