कामद्वेषहर्षदैन्यव्यवसायभयद्वन्द्वविपर्यासमिङ्गिताकाराभ्यां हि मन्त्रसंवरणार्थमाचरति प्राज्ञः ॥ कZ_०५.५.०६ ॥
kāmadveṣaharṣadainyavyavasāyabhayadvandvaviparyāsamiṅgitākārābhyāṃ hi mantrasaṃvaraṇārthamācarati prājñaḥ
For desire, hatred, joy, dejection, resolve, fear, inner conflict, and confusion reveal themselves through gestures and expressions; therefore the wise discipline themselves to keep counsel concealed.
Uncontrolled emotions leak intentions through observable behavior, compromising secret policy and negotiation leverage.