Planning to trap him (me) in your net, with your grace evident, like a spider spins and spreads its web to trap its prey, you trapped me like you planned and once I was trapped you imprisoned me and devoured me oh Arunachala!
The spider spins its web with its thread and other insects come of their will and get trapped as the spider’s food. Similarly, you devised a cunning plan to trap me, and without knowing it, I got caught in it like an innocent prey, and you trapped me so tight as to prevent me from escaping. ’Sindhithu’ here refers to one of the three forms of initiation (we covered this in verse 63 noakkiye karudhi Mei thakkiye …’) where the lord initiates by thought.
Arunachala imprisoned the jiva bodham (knowledge of the sou, body-mind-ego consciousness), devoured it and bestowed gnana bodham (wisdom of the self or knowledge of the self), this Bhagavan calls as ’sirai ittundanai’ meaning you imprisoned and devoured. The greatest favour a guru can do to manifest his grace is by ‘devouring’ the jiva of the disciple who has take refuge, and thus destroy his ego-consciousness. Once this is destroyed what remains is the real form of the Self. Bhagavan proudly declares the great favour done to him by Arunachala.