The Fowler said: The vital spirit manifesting itself it seat the consciousness causes the action of the corporeal frame. The soul being present in both of these acts.
व्याध उवाच मूर्धानमाश्रितो वह्निः शरीरं परिपालयन्। प्राणो मूर्धनि चाग्नौ च वर्तमानो विचेष्टते॥