Every human soul is "found upon" one of the seven rays. This statement refers particularly to the vibratory frequency of the individual's soul nature. This vibratory resonance is why we feel more at home, or coherent, with those whose rays are in tune with the frequency of our own. Our individual soul ray expression influences the entirety of our being when we are awake to our higher self. When we are new to the spiritual path, the mind and personality rays may be our stronger expression.