स एवातिक्रान्तः पक्षाभ्यामसह्यः ॥ कZ_१०.६.११ ॥
sa evātikrāntaḥ pakṣābhyām asahyaḥ
That same array, when it advances beyond both wings, is called ‘Asahya’ (hard-to-bear/irresistible).
It signals intent: concentrate combat power into a forward-driving segment meant to break the enemy line quickly.