Winstanley, however, regarded the word “God” as too vague satisfactorily to denote the supreme spiritual power which pervades, upholds and governs the whole universe.  He had, he tells us, “been held in darkness by that word, as I see many people are."[44:2] And so that neither he nor others should “rest longer upon words without knowledge, but hereafter may look upon that spiritual power, and know what it is that rules them, which doth rule in and over all,” he felt himself impelled to conceive of and to refer to this spiritual power, which is God, as “Reason.”  He contends that “though men may esteem the word Reason to be too mean a name to set forth the Father by, yet it is the highest name that can be given to Him.  For it is Reason that made all things; and it is Reason that governs the whole Creation.  If flesh were but subject thereunto, that is, to the Spirit of Reason within itself, it would never act unrighteously....  For this Spirit of Reason is not without a man, but within every man; hence he need not run after others to tell him or to teach him; for this Spirit is his maker, he dwells in him, and if the flesh were subject thereunto, he would daily find teaching therefrom, though he dwelt alone and saw the face of no other man."[45:1] “This is the Spirit, or Father, which as he made the Globe and every creature, so he dwells in every creature, but supremely in man.  He it is by whom everyone lives, and moves, and hath his being.  Perfect man is the eye and face that sees and declares the Father:  and he is perfect when he is taken up in the Spirit and lives in the light of Reason."[45:1] “Reason is that living Power of Light that is in all things.  It is the salt that savours all things.  It is the fire that burns up dross, and so restores what is corrupted, and preserves what is pure.  He is the Lord our Righteousness.  It lies in the bottom of love, of justice, of wisdom:  for if the Spirit Reason did not uphold and moderate these, they would be madness; nay, they could not be called by their names, for Reason guides them in order and leads them to their right end, which is not to preserve a part, but the whole Creation."[45:2]

The reason of man, Winstanley regarded but as an emanation of the Divine Spirit Reason, as the one true Inward Light, which if men would only and wholly follow would lead them to live in peace and harmony, and in accordance with the Divine Spirit.  “Man’s reasoning,” he says,[45:2] “is a creature which flows from that Spirit to this end, to draw up man into himself.  It is but a candle lighted by that soul, and this light, shining through flesh, is darkened by the imagination of the flesh.  So that many times men act contrary to reason, though they think they act according to Reason....  The Spirit Reason, which I call God, the Maker and Ruler of all things, is that spiritual power that guides all men’s reasoning in right order, and to a right end ... and knite every creature together into a oneness, making every creature to be an upholder of his fellows; and so everyone is an assistant to preserve the whole.  And the nearer man’s reasoning comes to this, the more spiritual they are; the further off they be, the more selfish and fleshy they be.”