Consciousness is oceanic, and the personal identity is like a drop within that ocean; it’s not hard to find the ocean, it’s all around you, it pervades you.
There’s a point in the inward moving breath after you breathe in, but before you’ve started to breathe out. Likewise, there’s a point in the outward moving breath after you breathe out, but before you’ve started to breathe in. By focusing your attention on these pivotal points within the breath, you gain entry into the causal body, the infinite fabric of the mind.
It’s at this point that you can begin the process of stopping the mind, and experience the unity of personal identity with the infinite ocean of consciousness.