[Footnote 3: Everything depends on this principle of Reciprocity. By contemplation we come to realize the true nature of "Spirit" or "the father." We learn to disengage the _variable_ factors of particular _Modes_ from the _invariable_ factors which are the essential qualities of Spirit underlying _all_ Modes. Then when we realize these essential qualities we see that we can apply them under any mode that we will: in other words _we_ supply the _variable_ factor of the combination by the action of our Thought, as Desire or Will, and thus combine it with the _invariable_ factor or "constant" of the _essential_ law of spirit, thus producing what result we will. This is just what we do in respect to physical nature--e. g., the electrician supplies the _variable_ factor of the particular Mode of application, and the _constant_ laws of Electricity _respond_ to the nature of the invitation given to them. This _Responsiveness_ is _inherent_ in Spirit; otherwise Spirit would have no means of expansion into manifestation. Responsiveness is the principle of Spirit's Self-expression. We do not have to create responsive action on the part of electricity. We can safely take this Responsiveness for granted as pure natural law. Our desire first works on the Arupa level and thence concentrates itself through the various Rupa levels till it reaches complete external manifestation.] And the result of the seeing is that "the Son" does the same things as "the Father" "in like manner." The Son's action is the reproduction of the universal principles in application to specific instances. The principles remain unaltered and work always in the same manner, and the office of "the Son" is to determine the particular field of their operation with regard to the specific object which he has in view; and therefore, so far as that object is concerned, the action of "the Son" becomes the action of "the Father" also. Again, there is no concealment on the part of "the Father." He has no secrets, for "the Father loveth the Son, and showeth him all things that himself doeth." There is perfect reciprocity between Spirit in the Universal and in Individualisation, resulting from the identity of Being; and "the Son's" recognition of Love as the active principle of this Unity gives him an intuitive insight into all those inner workings of the Universal Life which we call the arcana of Nature. Love has a divine gift of insight which cannot be attained by intellect alone, and the old saying, "Love will find out the way," has greater depths of meaning than appear on the surface. Thus there is not only a seeing, but also a showing; and the three terms--"looking, seeing, showing"--combine to form a power of "working" to which it is impossible to assign any limit.