प्रतिघातो बलवतो दुर्गाटव्यपसारवान् ॥ कZ_०७.१३.२५च्द् ॥
pratighāto balavato durgāṭavyapasāravān
‘प्रतिघातः’ बलवतः; यः दुर्गेषु अटव्येषु च अपसर्तुं (विलीयितुं) शक्नोति।
Because the ability to absorb pressure and still preserve forces through secure refuges is what enables an effective repulse or counter-check.