The syllable Hâu is this world (the earth), the syllable Hâi the air, the syllable Atha the moon, the syllable Iha the self, the syllable Î is Agni, fire.

In plain words: The extra sounds sung in sacred chants each stand for something. Hau stands for the earth, Hai for the air, Atha for the moon, Iha for the self, and I for fire.