The meaning of the last 2 legs of the Gayatri Mantra is represented by Hrim Karam in Srividya. In this way Gayatri and Panchdashi Mahamantras have the same meaning. Gayatri Mantra is explained in the 12th Skandham of Devi Bhagavatam. 24 Rishis, 24 Chandassas, 24 Devas, 24 Saktis, 24 Colors, 24 Varnatattvas and 24 Varnamudras are mentioned for this mantra. We are also quoting them here.
Gayatri Mantra has 24 sages. They are
1. Vamadeva 2. Atri. 3. Vasishtha 4. Shukra 5. Kanva 6. Parashara 7. Vishwamitra 8. Kapila 9. Shauna 10. Yajnavalkya 11. Bharadvaja 12. Jamadagni 13. Gautama 14 Agastya 15 Kausika 16 Vyasa 17. Vatsa 18 Pulatsya 19 Manduka 20 Mudgala 21 Durvasa 22 Narada 23 Lomasu 24. Kashyapa
Gayatri mantra has 24 chandas. They are
1. Gayatri 2. Shakwari 3. Aakruti 4 Ushthik 5. Atishakwari 6. Anushtup 7. Dhruti 8. Sanskriti 9. Brihati 10 Atidhruti 11. Aksharapankti 12. Trishtubhamu 13. Virat 14. Bhuh 15. Pankti 16. Prasarapankti 17. Rbhuvah 18. Jagati 19. Swah 20. Atijagati 21. Prakruti 22. Jyotishmati 23 Vikriti 24. Kriti
Gayatri Mantra has 24 deities. They are
1. Bhagwa 2. Maitravaruna 3. Prajapati 4 Yama 5. Vaiswadeva 6. Chandra 7. Ganesha 8. Matrikas 9. Ishan 10. Tvashta 11. Vishnu 12. Savita 13. Pusha 14 Vasu 15. Aditya 16. Indragni 17 Rudra 18. Bruhaspati 19. Vayu 20. Kubera 21. Maitravaruna 22. Vamadeva 23. Ashwani 24. Fire
Among these deities there are two named Maitravaruna. It is not a typing mistake.
Gayatri Mantra has 24 Shaktis. They are
1. Vamadevi 2. Kanta 3. Sookshma 4. Priya 5. Vishwayoni 6. Saraswati 7. Vijaya 8. Visvabhadra 9. Vidruma 10. Vasa 11. Vilasini 12. Visalesa 13. Padmalaya 14. Prabhavati 15. Vyapini 16. Parashobha
17 Jaya 18. Vimala 19. Bhadra 20 Santa 21 Tamopaharini 22. Tripada 23. Durga 24. Satya
Varnas (colours) of Gayatri Mantra are 24. They are
1. Sampaṅgi 2. Padmarāgamu 3. Pasupu 4. Avise 5. Indranīlamaṇi 6. Pālamiśraṇamu 7. Pagaḍamu 8. Mutyamu 9. Sūryakānti 10. Spaṭikamu 11. Kuṅkuma 12. Cilukatōkaraṅgu 13. Padmapuṣpamu 14. Kāṭuka 15. Śatapatrakānti 16. Bālādityuḍu 17 raktamu 18. Kautakīpuṣpamu 19. Śaṅkhakundēlu 20. Vaiḍūryamu 21. Mallikākusumamu 22. Pagaḍamu 23. Karavīrapuṣpakānti 24. Tēne
Gayatri Mantra has 24 varna tatvas. They are
1. Soil 2 Eye 3. Water 4. Skin 5. Light 6 Speech 7. Sotra 8 Wind 9. Pani, Pada 10. Prana 11. Sky 12. Payu 13. Apana 14. Sand 15. Vyana 16. Rasa 17. Smell 18. Udana 19. Form 20. Tongue 21. Sameness 22. Touch 23. Sound 24. Upastha
Gayatri mantra has 24 types of mudras. They are
Sumukhamu 2. Ṣaṇmukhamu 3 muṣṭikamu 4. Sampuṭamu 5. Adhōmukhamu 6. Matsyamu 7. Vitatamu 8. Vyāpakān̄jalikamu 9. Kūrmamu 10. Vistr̥tamu 11. Śakaṭamu 12. Varāhamu 13. Dvimukhamu 14. Yamapāśamu 15. Sinhakrāntamu 16. Trimukhamu 17. Gradhitamu 18. Mahakrāntamu 19. Caturmukhamu 20. Ṣaṇmukhōnmukhamu 21. Mudgaramu 22. Pan̄camukhamu 23. Pralambamu 24. Pallavamu
But the mudras for the thirty-two-letter Gayatri mantra are as follows.
1. Trident 2. Lingam 3. Yoni 4. Surabhi 5. Akshamala 6. Ambujam
This type of Gayatri mantra is chanted by all Brahma Kshatriyas and Vaishyas. However
Omkaravyahritipurvam Gayathrim Brahmano Japet
Tristubham Chaiva Rajnyo Jagatim Vaishya Eva Ch.
Gayatri with Om and vyahrti is chanted by Brahmins
Gayatri in Trishtup chandas is chanted by Kshatriyas
Gayatri in Jagati chandas is chanted by Vysyas
Also in Mantra Shastra every Mantra has a Gayatri.
Katyayanaya Vidmahe Kanyakumari Dhimahi Tanno Durgih Prachodayat |
Mahadevyai Cha Vidmahe | Vishnupatyaicha dhimahi tanno lakshmih prachodayat ||
Gayatri Mantra is most powerful of all
Once, there was a drought. For almost fifteen years, not a single drop of rain fell. No food is available. Even the trees and the ants Perished. It was an intolerable drought. Due to a scarcity of grass, cattle perished. Milk is not given to infants. Some people have gotten to the level of eating dead carcasses because they can't control their hunger. Others have killed their infants by strangling them since they were unable to nurture and raise them. It was a dance of destruction by the nature's fury. There was no way for certain scholars to band together and get out of this situation back then, was there? They held that belief. Finally, Gautama was remembered. In those days, some scholars got together and thought about the way to escape from this miserable situation. Then they approached Gautama. Gautama was a sage. He did great penance. He used to worship Paradevata. Because of her compassion, he was blessed with a boon that no matter the condition, if he plants seeds, they will sprout. So now if we all take refuge in Gautama, he will definitely help us. Thinking this they traveled to Gautama's ashram. Seeing these scholars who had come with their families, Gautama realized that they were in some danger and invited them and entertained them. Knowing what happened, prayed to para devata like this
Namō dēvi! Mahāvidyē! Vēdamātaḥ! Parātparē!
Vyāhr̥tyādi mahāmantrarūpē! Praṇavarūpiṇi!
Sāmyāvasthātmikē! Mātaḥ! Namō hrīṅkāra rūpiṇi
svāhā svadhā svarūpē! Tvāṁ namāmi sakalārdhadām
bhaktakalpalatāṁ dēvīṁ avasthātraya sākṣiṇīṁ
kuryātīta svarūpāṁ ca saccidānanda rūpiṇīṁ
sarvavēdānta sanvēdyāṁ sūryamaṇḍala vāsinīṁ
prātarbālāṁ raktavarṇāṁ madhyāhnē yuvatīṁ parāṁ
sāyāhnē kr̥ṣṇavarṇāṁ tāṁ vr̥d'dhāṁ nityaṁ namā myaham ||
He arranged a residence for all those who came and arranged food facilities for all of them through the boon given to him by the deity in the past. Those who had not had food and drinks for a long time and had even forgotten what they look like, got abundant food with Panchabhakshas by the grace of that Paradevata. They praised Gautama in various ways. They praised Parameshwari. All the pundits started performing yagnas. 100 yojanas of Gautams ashram is filled with all the pundits. Gautama protected all of them.
After some time, sage Narada came and praised Gautama's work and said, "Maharshi! You have supported them when they are in need. By using the boon given by Parashakti for them, your power increased. It is said that whoever helps others with his power, his power will be doubled. Now the same happened to you. All the deities like Indra are praising the work you are doing" he said. Hearing these words, the pundits became jealous. They could not bear Gautama getting such a name. By hook or crook, they wanted to tarnish Gautama's reputation.
It started raining. Gradually the ground cooled. Lakes started flowing. Rivers overflowed. The seeds are sprouting. The scholars also prepared to leave and created an illusionary cow. It came and started destroying the crops and food in the ashram premises. Seeing that, Gautama got angry. He did not want to beat the cow. So, he shooed it away. Then illusionary cow fell down and died. The scholars who were watching all this from the ashram said, "Gautam killed the cow. Cow slaughter is the greatest of all sins. We cannot stay in this ashram anymore. So, we are leaving" and left. Not knowing that it was Maya, Gautama pleaded them. He asked them for an idea to wash away this sin. Then the pundits thought of an impossible task for Gautama. After thinking for a while, they said that if the Ganga is brought down to earth and flowed over the dead cow, this sin will be washed away.
Gautama did penance for Lord Shiva for many years. Lord Shiva appeared and according to Gautama's wish, released two drops from his long hairs. That water flowed down the dead cow. That's when the dead cow got up. The river was named Gautami because it was floated by Gautama and Godavari because it came to save the cow. Pundits then ridiculed Gautama that he did so much penance to save an illusionary cow. Knowing the truth with divine vision, the sage got angry with them and said, "From now on, chanting of Gayatri will be unfruitful for you. Veda study and performing yagnas will not be for you. All of you will become unrighteous and corrupt. You will behave like cattle. This will continue for generations," he cursed. In the Dwapara Yuga, when all the scholars prayed for the forgiveness of the wrongdoing, Lord Krishna was born in Nanda's house in Yadu dynasty with essence of Parameshwari element. With Krishna's birth they were freed from the curse. they again performed Gayatri Anusthanam and attained liberation. One who chants Gayatri emerges with Brahman effulgence.