पक्षकक्षोरस्यैः समं वर्तमानो दण्डः ॥ कZ_१०.६.०८ ॥
pakṣakakṣorasyaiḥ samaṃ vartamāno daṇḍaḥ
A ‘Daṇḍa’ (staff/rod array) is when the main line advances level with the wings (pakṣa), the flanks/axles (kakṣa), and the central chest (uras).
To keep a uniform front where wings and centre advance together—useful for steady pressure and preventing envelopment gaps.