प्रथमे रात्रिभागे गूढपुरुषान्पश्येत् ॥ कZ_०१.१९.१८ ॥
prathame rātribhāge gūḍhapuruṣān paśyet
Dans la première partie de la nuit, il doit rencontrer (examiner les rapports des) agents secrets.
Night reduces visibility and social trace, improving secrecy and lowering the risk of signaling priorities to rivals.