Srimad Bhagavatam — Tritiya Skandha, Shloka 35
Kāla-vibhāga: The Divisions of Time from Atom to Brahmā, and the Lord Beyond Time
पूर्वस्यादौ परार्धस्य ब्राह्मो नाम महानभूत् । कल्पो यत्राभवद्ब्रह्मा शब्दब्रह्मेति यं विदु: ॥ ३५ ॥
pūrvasyādau parārdhasya brāhmo nāma mahān abhūt kalpo yatrābhavad brahmā śabda-brahmeti yaṁ viduḥ
पूर्वपरार्धस्यादौ ब्राह्मो नाम महान् कल्पोऽभूत्, यत्र ब्रह्मा प्रादुरभवत्। तत्रैव वेदाः शब्दब्रह्मरूपेण सहैवाजायन्ते इति विदुः॥
According to Padma Purāṇa ( Prabhāsa-khaṇḍa ), in thirty days of Brahmā many kalpas take place, such as the Varāha-kalpa and Pitṛ-kalpa. Thirty days make one month of Brahmā, beginning from the full moon to the disappearance of the moon. Twelve such months complete one year, and fifty years complete one parārdha, or one half the duration of the life of Brahmā. The Śveta-varāha appearance of the Lord is the first birthday of Brahmā. The birth date of Brahmā is in the month of March, according to Hindu astronomical calculation. This statement is reproduced from the explanation of Śrīla Viśvanātha Cakravartī Ṭhākura.
FAQs
The Brāhma-kalpa is the great day of Brahmā at the beginning of the first half of his life, during which Brahmā manifests and the process of creation unfolds.
Śabda-brahma refers to Brahman realized as sacred sound—Vedic vibration—through which creation and knowledge are revealed and sustained.
By regularly hearing and chanting sacred names and Vedic prayers with attention, one aligns the mind with transcendental sound and cultivates clarity, devotion, and steadiness.