BG 17.24 tasmad om ity udahatya... cited

Expressions researched:
"pravartante vidhanoktah" |"satatam brahma-vadinam" |"tasmad om ity udahrtya" |"yajna-dana-tapah-kriyah"

BG Chapters 13 - 18

BG 17.24, Translation and Purport:

Therefore, transcendentalists undertaking performances of sacrifice, charity and penance in accordance with scriptural regulations begin always with oṁ, to attain the Supreme.

Oṁ tad viṣṇoḥ paramaṁ padam (Ṛg Veda 1.22.20). The lotus feet of Viṣṇu are the supreme devotional platform. The performance of everything on behalf of the Supreme Personality of Godhead assures the perfection of all activity.

Teachings of Lord Caitanya

Teachings of Lord Caitanya, Chapter 20:

The principal word in the Vedas—praṇava, or oṁkāra—is the sound representation of the Supreme Lord. Therefore oṁkāra should be considered the supreme sound. But Śaṅkarācārya has falsely preached that the phrase tat tvam asi is the supreme vibration. Oṁkāra is the reservoir of all the energies of the Supreme Lord. Śaṅkara is wrong in maintaining that tat tvam asi is the supreme vibration of the Vedas, for tat tvam asi is only a secondary vibration. Tat tvam asi suggests only a partial representation of the Vedas. In several verses of the Bhagavad-gītā (BG 8.13, 9.17, 17.24) the Lord has given importance to oṁkāra. Similarly, oṁkāra is given importance in the Atharva Veda and the Māṇḍūkya Upaniṣad. In his Bhagavat-sandarbha, Śrīla Jīva Gosvāmīhas given great importance to oṁkāra: "Oṁkāra is the most confidential sound representation of the Supreme Lord." The sound representation or name of the Supreme Lord is as good as the Supreme Lord Himself. By vibrating such sounds as oṁkāra or Hare Kṛṣṇa, Hare Kṛṣṇa, Kṛṣṇa Kṛṣṇa, Hare Hare/ Hare Rāma, Hare Rāma, Rāma Rāma, Hare Hare, one can be delivered from the contamination of this material world. Because such vibrations of transcendental sound can deliver a conditioned soul, they are known as tāraka-mantras.