In "Self-Reliance," what does "the eye was placed where one ray should fall" mean?

Emerson's essay "Self-Reliance" also emphasizes the
Transcendental concept of the importance of the individual and each individual's
intuition which is the "eye" that receives the "ray" of intuition.  That Emerson
stresses individualism is evidenced in the sentence that
precedes,

Not
for nothing one face, one character, one fact makes much impression on him, and another
none.

In other words, each
individual has his/her own intuitive experiences through he is "impressed" or not.  But,
in addition to this concept of the individual, Emerson expresses the idea of the
Over-Soul of which all men are a part:

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We but half express ourselves, and are ashamed of
that divine idea which each of us
represents.

Ralph Waldo
Emerson's line, "The eye was placed where one ray should fall, that it might testify of
that particular ray," reiterates what he has declared in his opening to
"Self-Reliance."  That is, to believe in yourself and your own thoughts, and to believe
those thoughts are true for others, is of paramount importance.  Indeed, Emerson's credo
is "trust thyself."  For him, and for another great Transcendentalist, Henry David
Thoreau, the importance of independent thought and the openness to receive ideas
intuitively are what make men individuals of worth.