Bhakti, Worship, God and Deva redirects here. So do all the Deities / Objects venerated and worshiped.

Bhakti (Sanskrit: भक्ति) literally means "attachment, participation, devotion to, fondness for, homage, faith or love, worship, piety to (as a religious principle or means of salvation)". Bhakti, in Hinduism, refers to devotion and the love of a personal god or a representational god by a devotee.

Most simply, bhakti refers to the common religious devotion that is held in the heart of a devoted person of any spiritual faith.

Both Islam and Christianity say "thou shalt not have strange gods before me", but Hinduism always believes in only 1 God*.

* The apparent multiplication of gods is bewildering at the first glance, but you soon discover that they are the same GOD. There is always one uttermost God who defies personification. This makes Hinduism the most tolerant religion in the world, because its one transcendent God includes all possible gods. In fact Hinduism is so elastic and so subtle that the most profound Methodist, and crudest idolater, are equally at home with it. – GB Shaw.

Religion, in its most general view, is such a Sense of God in the soul, and such a conviction of our obligations to Him, and of our dependence upon Him, as shall engage us to make it our great care to conduct ourselves in a manner which we have reason to believe will be pleasing to Him.

Sacrifice is the first element of religion, and resolves itself in theological language into the love of God.

A religiously developed person makes a practice of referring everything to God, of permeating and saturating every finite relation with the thought of God, and thereby consecrating and ennobling it.

I said before, the most beautiful and most profound religious emotion that we can experience is the sensation of the mystical. And this mysticality is the power of all true science. If there is any such concept as a God, it is a subtle spirit, not an image of a man that so many have fixed in their minds. In essence, my religion consists of a humble admiration for this illimitable superior spirit that reveals itself in the slight details that we are able to perceive with our frail and feeble minds. – Albert Einstein

Hinduism

Brahman

Often confused with Brahma (one of the Trinity), the Brahman is the ultimate reality underlying all phenomena in the Hindu scriptures. "Brahman is formless but is the birthplace of all forms in visible reality"

In Hinduism there is the Trinity Brahma, Vishnu, Shiva with their consorts Saraswati, Lakshmi and Parvathy.

There is also Purusha and Prakriti which both have an singular absolute and are lost in the multiplicity.

Shiva

The Ultimate Yogi, representing the tamas element, Shiva deconstructs
http://shaivam.org
http://www.ishafoundation.org/blog/sadhgurus-latest-ebook-shiva-ultimate-outlaw/

Shakthi

http://indiatemple.blogspot.in/2015/07/to-ma-kamakshi-ma-tara.html

Vishnu

The sustainer of the world, representing rajas. Visit his page to see more about his 10 avatars.

Christianity

Jesus the Christ. Probably the most popular and loved figure in human history.
http://www.mkgandhi.org/ebks/whatjesusmeanstome.pdf