I am a Hindu but multiple Gods don’t work for me. How can I adopt Monotheism ?

The abovementioned question was on Quora, to which I replied the following :
I doubt that you are a born Hindu. It sounds as if you want to ‘encourage’ other Hindus to reflect if ‘multiple Gods work for them’…
And if you are indeed a Hindu, you obviously don’t know the basics of your tradition. Your tradition claims that all this temporary multiplicity is like many waves on the one ocean, or is like the multiple pictures of a movie on one screen. All is permeated by the eternal Brahman or Paramatman – Satchitananda or blissful consciousness. Names don’t matter, because Brahman doesn’t fit into words or thoughts.

And yes, not only humans, the Devas, and other beings too, are permeated by Brahman and are ultimately nothing but Brahman, like the waves are one with the ocean.
Even the CIA admitted in a 2016 declassified document on cultural trends that ‘the religion (Hinduism) has a sophisticated philosophical and ethical system, called Vedanta based on the Upanishad section of the four Vedas.’
Compared to Hindu philosophy, the theology of the Abrahamic religions has no solid basis. Their ONE God is separate from his creation. You must NOT claim that you are one with the Divine. It is declared heresy.
Obviously, their God is part of the multiplicity, of Maya in Hindu terms or of the virtual reality in modern terms.
Moreover, how can the topmost power in this universe be biased against the majority of humans and send them eternally to hell ? Only because they don’t believe in one particular person or one particular book ?
But if a Christian, Muslim or Jew has intense Bhakti (Devotion) towards God/Allah/Yahwe, it will reach the one true Source beyond Maya and he can realise oneness with the Divine. It happened to some. But they were excommunicated (like Meister Eckhart) or even executed, like the Sufi Mansur Al Hallaj who famously declared Ana al haq (I am the Truth/God).
In Hinduism, people who realised their oneness with the Divine are venerated.
Think, reflect and don’t try to be clever …
(Courtesy : mariawirth.com)
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