Several hymns of the Rigveda repeat the mighty deed of Vishnu called the Trivikrama, which is one of the lasting mythologies in Hinduism since the Vedic times.
It is an inspiration for ancient artwork in numerous Hindu temples such as at the Ellora Caves, which depict the Trivikrama legend through the Vamana avatar of Vishnu.
Trivikrama refers to the celebrated three steps or "three strides" of Vishnu.
Starting as a small insignificant looking being, Vishnu undertakes a herculean task of establishing his reach and form, then with his first step covers the earth, with second the ether, and the third entire heaven.

विष्णोर्नु कं वीर्याणि प्र वोचं यः पार्थिवानि विममे रजांसि ।


यो अस्कभायदुत्तरं सधस्थं विचक्रमाणस्त्रेधोरुगायः ॥१॥…
viṣṇōrnu kaṃ vīryāṇi pra vōcaṃ yaḥ pārthivāni vimamē rajāṃsi |
yō askabhāyaduttaraṃ sadhasthaṃ vicakramāṇastrēdhōrugāyaḥ ||1||

I will now proclaim the heroic deeds of Visnu, who has measured out the terrestrial regions, 

who established the upper abode having, wide-paced, strode out triply…
— Rigveda 1.154.1, Translated by Jan Gonda
The Vishnu Sukta 1.154 of Rigveda says that the first and second of Vishnu's strides (those encompassing the earth and air) are visible to the mortals and the third is the realm of the immortals.
The Trivikrama describing hymns integrate salvific themes, stating Vishnu to symbolize that which is freedom and life.
The Shatapatha Brahmana elaborates this theme of Vishnu, as his herculean effort and sacrifice to create and gain powers that help others, one who realizes and defeats the evil symbolized by the Asuras after they had usurped the three worlds, and thus Vishnu is the savior of the mortals and the immortals (Devas).
Several hymns of the Rigveda repeat the mighty deed of Vishnu called the Trivikrama, which is one of the lasting mythologies in Hinduism since the Vedic times. It is an inspiration for ancient artwork in numerous Hindu temples such as at the Ellora Caves, which depict the Trivikrama legend through the Vamana avatar of Vishnu. Trivikrama refers to the celebrated three steps or "three strides" of Vishnu. Starting as a small insignificant looking being, Vishnu undertakes a herculean task of establishing his reach and form, then with his first step covers the earth, with second the ether, and the third entire heaven.
विष्णोर्नु कं वीर्याणि प्र वोचं यः पार्थिवानि विममे रजांसि ।

यो अस्कभायदुत्तरं सधस्थं विचक्रमाणस्त्रेधोरुगायः ॥१॥…
viṣṇōrnu kaṃ vīryāṇi pra vōcaṃ yaḥ pārthivāni vimamē rajāṃsi |
yō askabhāyaduttaraṃ sadhasthaṃ vicakramāṇastrēdhōrugāyaḥ ||1||

I will now proclaim the heroic deeds of Visnu, who has measured out the terrestrial regions, 

who established the upper abode having, wide-paced, strode out triply…
— Rigveda 1.154.1, Translated by Jan Gonda
The Vishnu Sukta 1.154 of Rigveda says that the first and second of Vishnu's strides (those encompassing the earth and air) are visible to the mortals and the third is the realm of the immortals. The Trivikrama describing hymns integrate salvific themes, stating Vishnu to symbolize that which is freedom and life. The Shatapatha Brahmana elaborates this theme of Vishnu, as his herculean effort and sacrifice to create and gain powers that help others, one who realizes and defeats the evil symbolized by the Asuras after they had usurped the three worlds, and thus Vishnu is the savior of the mortals and the immortals (Devas).
Vishnu