Is there any equivalent of the Shivoham experience in Christianity?

A seeker's question to followers of Christianity: In all the religions that originated from India, there is a concept of oneness with God. My question is: **What is the equivalent of this in other religions, like Christianity?** **Explanation:** (1) There is but one God ==> Monotheism (2) There is but one, God ==> Advaitic religions (Hinduism, Buddhism, Sikhism, Jainism, etc.) Please understand the difference in the two. The first (1) statement, is more like a moral science lesson, which says there is one God, God is one. There should not be a fight between my God and your God, because God is one. There is no your God and my God ... etc. The second statement means, There is only God in the universe and we are all part of Him. Oneness with God. It also implies, the entire universe is not separate from God. The entire universe is filled with divine consciousness. We all are one with each other, and one with God. There is no individual identity - what we call EGO. Advaitic philosophy says, that EGO is a illusion, because there is no individual separate existence. It is like God is a big ocean (param aatma / super consciousness), we are drops(aatma/consciousness) in that ocean. And Upanishads go even further to tell us, even if you take out that drop(aatma) from the ocean(param-aatma), even then that drop(aatma) is not separate from the ocean(param-aatma). In short, we are one with God. This is celebrated as Shivoham => I am Shiva / God (one with God & universe) Soham => I am that (whomever you believe as God ) etc. What is the equivalent OR alternative of this in Christianity?