Aum is our God. Aum is nothing else then brAhma vishnU Mahesh. All three are one and govern the entire universe.
They have different functions, yet they complete one another. There's a belief that the world started with just the
sound of Aum and from this Lord Shiva was created and he end up creating Lord Vishnu and Lord Brahma.
It is all about belief and blind faith. In the Bhagavad Gita, Lord Krishna himself tells us to pray to him in whatever form works for you.
"From the Rudras, I am Lord Shiva, of the Yaksas and Raksasas I am Kuvera, of the Vasus I am Agni and of the mountains I am Meru."
God is omnipresent. Hinduism counts 100 million Gods, which makes it easier for anyone to pray to whom he/she wants.
Children pray to Lord Ganesha, mothers pray to ma Durga and single girls pray to Lord Shiva.
My message is: pray to the deity that gives you the best feeling and makes you the strongest.
Derian singh reacted to Raveena in Shiva versus Vishnu: Who is greater?