Where the cause of love lies not in the one who loves but in the object of love, this form and kind of love in the sense world is absolute proof against every luciferic influence. But now if you observe human life, you will soon see that another kind of love is playing its part, in which a person loves because he himself has certain qualities that feel satisfied, or charmed, or delighted, when he can love this or that other being. Here he loves for his own sake; he loves because his disposition is thus or so, and this particular disposition finds its satisfaction in loving someone else.
This love, which one can call egoistic love, must also exist. It really has to be present in mankind. Everything we can love in the spiritual world, all the spiritual facts, everything that love can cause to live in us as a longing for and an impulse upwards into the spiritual world, to comprehend the beings of the spiritual world, to perceive the spiritual world: all this springs naturally from a sentient love for that world. This love for the spiritual, however, must — not may but must — come about necessarily for our own sake. We are beings whose roots are in the spiritual world. It is our duty to make ourselves as perfect as we can. For our own sake we must love the spiritual world in order to draw as many forces as possible out of it into our own being. In spiritual love a personal, individual element — we can call it egoistic — is fully justified, for it detaches man from the sense world; it leads him upwards into the spiritual world; it leads him on to fulfill the necessary duty of continually bringing himself further and further towards perfection.
Source: Rudolf Steiner – GA 147 – Secrets of the Threshold – Lecture 2 – Munich, 25th August 1913
Translated by Ruth Pusch