From SCI and Religion, 1974, taught in Isla Vista, CA (Goleta)
In quite recent times, there was a common belief around the world that "Hinduism" was essentially a polytheistic religion, consisting of believers who worshipped many many different gods.
But even that concept concerning Hinduism also included a "grand trinity" of major "Gods" consisting of Shiva, Vishnu, and Brahma; (the Destroyer (Shiva), the Maintainer (Vishnu), and the Creator (Brahma).
When Maharishi Mahesh Yogi had finished his mission here on earth in Feb. 2008, he left us also with a major "One God" of Vedic Science, the unmanifest absolute which every "successful" TM practitioner has experienced for his or herself. The process for experiencing that "Almighty Father" is the TM meditation technique. "Shiva" then would be the process of transcending; that is, experiencing the normal everyday world of the five senses, transitioning during TM to experiencing the field of unity, or pure silence, the Transcendant, aka, "the source of thought", aka, "Transcendental Consciousness", aka, "deepest restful alertness".
"Shiva", the process of doing Transcendental Meditation, then destroys momentarily the world of the five senses and gives us the experience of unity, the One God, the Almighty Father of Christianity, Judaism, and the Muslim Faith, as well as the unity that Buddha expounded and experienced himself, and wished for his followers to experience. Maharishi believed and taught that Buddha himself taught TM to his followers. Some say Christ taught what amounts to TM to his closest followers.
The One God, aka, "Allah", is the same "One God" of Judaism, Vedic Science, Christianity, and Buddhism, as well as all the rest of the religions which have "One Almighty God".
Jesus Christ himself taught his 12 disciples and his followers to pray not to himself, but to "his father in heaven" as follows:
Our Father who art in heaven, hallowed be thy name. Thy kingdom come, thy will be done on earth as it is in heaven. Give us this day our daily bread, and forgive us our sins as we forgive those who sin against us. Lead us not into temptation, and deliver us from evil, for thine is the kingdom, the power, and the glory, forever and ever, Amen.
The Muslims have always considered Jesus Christ to be a great prophet, and include him in their own religion. I can see that Christ's admonition to his "Christian" followers to pray to the Almighty Father, the One God of the Jewish religion, is good advice. (The Muslim faith was not yet manifest when Jesus was still alive as a human on earth.)
I also can see that Maharishi Mahesh Yogi reestablished the One Almighty God of Heaven and earth as the supreme goal for the Hindu (Vedic) religion.