But we saw that there was a Fourth Person, or in some religions a second Trinity, feminine, the Mother. This is That which makes manifestation possible, That which eternally in the One is the root of limitation and division, and which, when manifested, is called Matter. This is the divine Not-Self, the divine Matter, the manifested Nature. Regarded as One, She is the Fourth, making possible the activity of the Three, the Field of Their operations by virtue of Her infinite divisibility, at once the "Handmaid of the Lord,"[270] and also His Mother, yielding of Her substance to form His Body, the universe, when overshadowed by His power.[271] Regarded carefully She is seen to be triple also, existing in three inseparable aspects, without which She could not be. These are Stability--Inertia or Resistance--Motion, and Rhythm; the fundamental or essential qualities of Matter, these are called. They alone render Spirit effective, and have therefore been regarded as the manifested Powers of the Trinity. Stability or Inertia affords a basis, the fulcrum for the lever; Motion is then rendered manifest, but could make only chaos, then Rhythm is imposed, and there is Matter in vibration, capable of being shaped and moulded. When the three qualities are in equilibrium, there is the One, the Virgin Matter, unproductive. When the power of the Highest overshadows Her, and the breath of the Spirit comes upon Her, the qualities are thrown out of equilibrium, and She becomes the divine Mother of the worlds. The first interaction is between Her and the Third Person of the Trinity; by His action She becomes capable of giving birth to form. Then is revealed the Second Person, who clothes Himself in the material thus provided, and thus become the Mediator, linking in His own Person Spirit and Matter, the Archetype of all forms. Only through Him does the First Person become revealed, as the Father of all Spirits. It is now possible to see why the Second Person of the Trinity of Spirit is ever dual; He is the One who clothes Himself in Matter, in whom the twin-halves of Deity appear in union, not as one. Hence also is He Wisdom; for Wisdom on the side of Spirit is the Pure Reason that knows itself as the One Self and knows all things in that Self, and on the side of Matter it is Love, drawing the infinite diversity of forms together, and making each form a unit, not a mere heap of particles--the principle of attraction which holds the worlds and all in them in a perfect order and balance. This is the Wisdom which is spoken of as "mightily and sweetly ordering all things,"[272] which sustains and preserves the universe.