Thank you Jafar, your views speak to me. Did you ever have the experience of oneness? The way you express your views it seems that it is coming from a personal experience 
Peace Muqeem
That's a very good question.
Have I ever have experienced oneness.
Apparently both the question and the answer is not as simple as I or should I say we initially thought.
Based on my current understanding, if Jafar has experienced truly oneness then Jafar will not be here. The reason why Jafar is here is because he's still on his way towards oneness.
So the question is similar to kindergarten kid asking his class mate have you obtained your PhD degree?
No insult to the question, because the question is a very good question.
But oneness or unification on much smaller scale might have been experienced by Jafar.
The example of such is this:
Jafar is merely an avatar on this forum, there's another persona behind Jafar who are 'living' on different 'realm'. But somehow Jafar and this persona think that they're both one, the persona is associating him (or her) self as Jafar as his (or her) manifestation inside the realm of this web forum.
This is not a static definition it could also be possible that Jafar is also associating himself with another different persona. As such now Jafar is a manifestation of two different persona behind him. Jafar and the two persona think that they're one. The two personas have common manifestation on the realm of this webforum as Jafar.
The opposite is also possible, the persona have multiple avatars... besides Jafar ithe persona is also manifesting him or herself as Jerome (for example) and they think that they're one.
Thus this is a matter of "scoping of perspective" about the definition of "I" and "Me" and also "We" and "Us".
Based on my current understanding, true unification or true oneness is a unification with everything a unification with an infinity. Infinity is a very large number isn't it?
How to achieve that?
There are two ways,
A. is to continuously enlarge the definition of "I" to also include other "I" (the you, he, she, it, them), in human language there are other word to describe the collection of "I" it's called "Us" or "We". Continuously enlarging "Us" to also include other "I" until there are no more "I" among the collection of "Them" are left.
The question will be how long will it takes?
It depends on the number of "I" who are among "Them"... the problem here is that the total number of "I" is actually infinite. Thus it will took an infinity to include the infinite number of "I".
The other option is:
B. to instantly just remove the boundary or border that define the "I". The border that differentiate between the "I" and the "Non I" (he, she, it, you, them). Instantly everything is included... but it will also resulted in the total abolishment of the "I" and also the "Non I", he , she, it, you, them. As "I" exist only because the "Non I" exist.
This is perhaps what ancient sages mean when they say: "By becoming nothing you will become everything".
By destroying our own ego we will achieve unification a.k.a oneness with everything.
That is my current understanding, but who knows along the way towards unification I will learn something new and the above understanding will changed or should I say be 'enriched'.