The third eye and balancing (reaction) to multiple sensory stimuli in simultaneous act.

An offshoot of rudimentary sense capability and reacting to light and vibration as conciousness.

The act stipulated survival and as complexity evolved chemoeffective structures were incorporated to both crystalize the actions as process structures which were stimulated by particular acts and placements.

Thus the growth of sense from scents and blinding of the primal eye.