Tamāla Kṛṣṇa: Purport. "The Kṛṣṇa conscious person is concerned only with the satisfaction of Kṛṣṇa and nothing else. Therefore he is transcendental to all attachment or detachment. If Kṛṣṇa wants, the devotee can do anything which is ordinarily undesirable, and if Kṛṣṇa does not want, he will not do anything which he would have ordinarily done for his own satisfaction. Therefore to act or not to act is within his control because he acts only under the dictation of Kṛṣṇa. This consciousness is the causeless mercy of the Lord which the devotee can achieve in spite of his being attached to the sensual platform." 65: "For one who is so situated, the threefold miseries of material life exist no longer. In such a happy state one's intelligence is steady." 66: "One who is not in transcendental consciousness can have neither a controlled mind nor steady intelligence, without which there is no possibility of peace, and how can there be any happiness without peace?" 67
Prabhupāda: Everyone in this material world, they are after peace, but they don't want to control the senses. It is not possible. Just like you are diseased, and doctor says that "You take this medicine, you take this diet," but you cannot control. You are taking anything you like, against the instruction of the physician. Then how you can be cured? Similarly, we want cure of the chaotic condition of this material world, we want peace and prosperity, but we are not ready to control the senses. We do not know how to control the senses. We do not know the real yogic principle of controlling the senses. So there is no possibility of peace. Kutaḥ śāntir ayuktasya. The exact word is there in the Bhagavad-gītā. If you are not engaged in Kṛṣṇa consciousness, there is no possibility of peace. Artificially, you may try for it. It is not possible.