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The Key to Theosophy: Being a Clear Exposition, in the Form of Question and Answer, of the Ethics, Science and Philosophy for the Study of Which the Theosophical Society Has Been Founded

Chapter 24

II. _Buddhi_ (the spiritual soul) is only its vehicle. Neither each

separately, nor the two collectively, are of any more use
to the body of man, then sunlight and its beams are for a
mass of granite buried in the earth, _unless the divine Duad
is assimilated by, and reflected in_, some _consciousness_.
Neither Atma nor Buddhi are ever reached by Karma, because
the former is the highest aspect of Karma, _its working
agent_ of ITSELF in one aspect, and the other is unconscious
_on this plane_. This consciousness or mind is,