द्वादशाङ्गुला वितस्तिः छायापौरुषं च ॥ कZ_०२.२०.१० ॥
dvādaśāṅgulā vitastiḥ chāyāpauruṣaṃ ca
वितस्ति (हाथ का फैलाव) बारह अंगुल का होता है; और ‘छाया-पौरुष’ (छाया-मानव) का माप भी उसी के अनुसार निर्धारित होता है।
Because uniform base units reduce disputes and corruption in surveying, wage-work measurement, procurement, and tax assessment.
It provides a practical, reproducible field method for estimating standardized height/length relationships during surveying and construction checks.