The Gayatri Mantra is a Vedic Mantra.
The Gayatri Mantra is a mantra from the Vedic tradition and is considered to be one of the most well known mantras. A mantra is essentially a syllable, word, phonemes, or group of words that have some psychological or spiritual power. When chanted this power can be gleemed by the chanter.
The Gayatri Mantra is believed to be revealed to Brahmarshi Vishvamitra, a sage. It is a verse of a hymn chronicled in the Rigveda, which was written in Sanskrit about 2500 to 3500 years ago.
The hymn is written in the Gayatri meter, and refers to a divine entity named Gayatri. The Gayatri Mantra is used to worship Gayatri and the Gayatri Mantra itself, which is why it is so revered. The mantra is also used to invoke the deva Savitr, and depending on the interpretation can be linked to Sun Worship, Yoga, Tantra and Mother Goddess.
Lyrics of the Gayatri Mantra:
Oṃ bhūr bhuvaḥ svaḥ
tát savitúr váreṇ(i)yaṃ
bhárgo devás yadhī mahi
dhíyo yó naḥ prachodáyāt
ॐ भूर्भुवः॒ स्वः ।
भ॒र्गो॑ दे॒वस्य॑ धीमहि ।
धियो॒ यो नः॑ प्रचो॒दया॑त् ॥
It roughly translates to:
“May we attain that excellent glory of Savitar the god:
So may he stimulate our prayers.”