एवमुक्त्वाऽन्तर्हृदयः शकायन्यस्तस्मै नमस्कृत्वाऽनया ब्रह्मविद्यया राजन् ब्रह्मणः पन्थानमारूढाः पुत्राः प्रजापतेरिति सन्तोषं द्वन्द्वतितिक्षां शान्तत्वं योगाभ्यासादवाप्नोतीति एतद्गुह्यतमं नापुत्राय नाशिष्याय नाशान्ताय कीर्तयेदिति अनन्यभक्ताय सर्वगुणसम्पन्नाय दद्यात् ॥ ॥६.२९ ॥
In plain words
Having spoken thus within his heart, Śākāyanya bowed to him and said: O king, by this knowledge of Brahman the sons of Prajāpati have mounted the path of Brahman. By the practice of the discipline a man attains contentment, endurance of the pairs of opposites, and tranquillity. Let this, the most hidden of all, not be told to one who is not a son, nor to one who is not a disciple, nor to one who is not tranquil. Let it be given to one who is devoted to none other and is furnished with every virtue.