It is a wonderful image that lies in this verse. We feel the strong good power of the soul. She is imbued with spirit, with divine forces, and so she wants to bring these divine forces into the outer world by her deeds. She wants to give herself form, become a being that is formed so that she is able to transform herself in human love and true human work.
The creative power of the soul Endeavours from the heart's ground To inflame forces of God In human life to work in the right way, To shape herself In human love and in human work.
Der Seele Schaffensmacht, Sie strebet aus dem Herzensgrunde, Im Menschenleben Götterkräfte Zu rechtem Wirken zu entflammen, Sich selber zu gestalten In Menschenliebe und im Menschenwerke.
This verses were given by Rudolf Steiner in 1912 / 1913: Anthroposophischer Seelenkalender.