Unnazhagai kaatu Arunachala
Arunachala, please show your divine beauty so the mind does not go outward due the strength of vasanas. And seeing your beautiful form, may it subside in your Self.
Arunachala! Due to the strength of vasanas my mind keeps going outwards, concerning itself with the world and material things. To quell such a mind, please show your beauty (unnazhagu literally is your beauty) so the mind rests/subsides in you. Odungudhal means to be brought under control, to subside quietly. Example, when you pour water on milk that’s boiling over, it subsides without sound. There’s a sense of surrender in this Odungudhal. Here Bhagavan is asking Arunachala to show his beauty so the mind does not go looking for it outside in the material world thus getting deluded by falsehood. Unless god manifests his divine form to his devotees through his abundant grace, it is impossible for us mere mortals to see him. Because His form is beyond our comprehension.