Arunachala (asagaya sooran says TRK, meaning someone who can conquer multiple enemies without any help)! You showed me the heroic qualities of your grace (aruL paraakiramam, literally grace heroism/strength). Immediately my ego and its sins were vanquished. As a result, peace came over me and I became quiet and you stayed in your immovable (achala = no movement) state.
The arrogance of ego that rules the devotees was totally destroyed by the heroic valour of your grace. The devotees, thus conquered, attained immense peace (Shanthi) and you also remained still, knowing your job was done successfully.
In the process of destroying one’s ego Arunachala may seem like he is moving but in reality he is achala, one who does not move (hence Arunachala).
Arunachala, without moving an inch or without any will of his own, functions as a magnetic power that draws people from all around and his grace works in his presence, like the sun enables life to function without any determination on the sun’s part. Bhagavan wonders at this magnetic quality in the 10th verse of Arunachala Padhigam)
Note: In recent times ‘salithal’ has taken on the meaning of helplessly frustrated (as in when people complain, you ask ‘yaen salichukkare?’) whereas it originally meant movement.