We should always endeavor to use our speaking power solely for the purpose of realizing Kṛṣṇa consciousness.
When we refer to the urge to speak, we refer to useless talking, such as that of the impersonal Māyāvādī philosophers, or of persons engaged in fruitive activities (technically called karma-kāṇḍa), or of materialistic people who simply want to enjoy life without restriction. All such talks or literatures are practical exhibitions of the urge to speak. Many people are talking nonsensically and writing volumes of useless books, and all this is the result of the urge to speak. To counteract this tendency, we have to divert our talking to the subject of Kṛṣṇa. This is explained in Śrīmad-Bhāgavatam (1.5.10-11):
- na yad vacaś citra-padaṁ harer yaśo
- jagat-pavitraṁ pragṛṇīta karhicit
- tad vāyasaṁ tīrtham uśanti mānasā
- na yatra haṁsā niramanty uśik-kṣayāḥ
- (SB 1.5.10)
"Those words which do not describe the glories of the Lord, who alone can sanctify the atmosphere of the whole universe, are considered by saintly persons to be like unto a place of pilgrimage for crows. Since the all-perfect persons are inhabitants of the transcendental abode, they do not derive any pleasure there."
- tad-vāg-visargo janatāgha-viplavo
- yasmin prati-ślokam abaddhavaty api
- nāmāny anantasya yaśo 'ṅkitāni yat
- śṛṇvanti gāyanti gṛṇanti sādhavaḥ
- (SB 1.5.11)
"On the other hand, that literature which is full of descriptions of the transcendental glories of the name, fame, forms, pastimes, etc., of the unlimited Supreme Lord is a different creation, full of transcendental words directed toward bringing about a revolution in the impious lives of this world's misdirected civilization. Such transcendental literatures, even though imperfectly composed, are heard, sung and accepted by purified men who are thoroughly honest."
The conclusion is that only when we talk about devotional service to the Supreme Personality of Godhead can we refrain from useless nonsensical talk. We should always endeavor to use our speaking power solely for the purpose of realizing Kṛṣṇa consciousness.