The Six Faces

Lord Karthikeya is said to have six faces.
The first face represents the syllable ‘a’
The second face represents the syllable ‘u’
The third face represents the syllable ‘m’
Thus the first three faces represent the divine sound of ‘AUM’.
The fourth face represents ‘naadham’ (sound)
The fifth face represents ‘vindhu’
The sixth face represents ‘kala’.