Here is a slightly different way of noticing the relationship between the sense of a separate I and the one I.
For all of us (I guess) there is a sense of I here. And this is real.
But we assume that this is a separate I, an I with an Other, and we place it on this individual.
This is how the whole human drama, as we know if from our own lives and the rest of the world, comes about.
And then, this I may discover that it is not a separate I. It is really just an I without an Other.
It is the field of all there is - of wakefulness, of emptiness, of form - absent of a separate I. It may happen to be functionally connected with a particular individual, but this individual is just one aspect of the field of form, and there is no separate I anywhere.
We are an I. There can be a temporary and convincing appearance of it is a separate I, one that is placed on a segment of the field and has an Other. And then it can awaken to itself as what it always and already is, the I absent of an Other anywhere.