As soon as you start to search for oneness you are trying to find something in the future, which means you want to change the now for something better. If you would stop searching and accepting everything like it is, you would see that the present moment is perfect like it is, there is nothing to change if you do not put a thought and are valuating what is. Even if you have thoughts there is the famous "witness" seeing this thoughts. thoughts can not see themself, so there is an awareness seeing the thoughts and this awareness is unaffected by thoughts, because it is already oneness.
It might sound a bit abstract, but there is really nothing to get, because what you get with your thoughts is also witnessed by the "witness" and is never the witness itself. It is in fact so easy so its complicated. its to close to see almost, like an eye trying to see itself (without an mirror).
Words are pointers and I hope some of you understand what I mean. (difficult to explain)
How would you describe oneness?