Veveshti Vyaapnoti iti Vishnuh
That which pervades everything is Vishnu. The word Vishnu as derived from the verbal root ‘vis’ means one who pervades, permeates everything and is free from the limitations of time, space and objects. The Mahanarayanopanishd says, ‘antar-bahisca tat sarvam vyapya narayanah sthithah’ – It is Sri Narayana, who stands inside and outside, pervading everything. 'Eessvaasyam Idam Sarvam' – all this is indwelt, pervaded by the Lord.

Sri Venkateswara is worshipped as Vishnu representing the Supreme functionality of sustaining, the presiding deity of the Tirumala Hills, in Andhra Pradesh, India. He is the one protecting and preserving the Universe. Sri Venkateswara, popularly known as Balaji, is the manifestations of Sri Vishnu, who has incarnated in the so-called cosmic time frame of kali-yuga corresponding to the present times we are living in.

The sage requested Lord Vishnu to settle in Tirumala, to shower his eternal grace on mankind, who were very much depressed and unable to follow the rigorous yoga practices of self-realization. Tirumala, the seat of Sri Venkateswara is surrounded by seven hills, thus He is known as Lord of the seven hills.