Grace is something that comes to us when we somehow find ourselves completely available, when we become openhearted and open-minded, and are willing to entertain the possibility that we may not know what we think we know.
Our own intuition of what we're called to is reality speaking to us individually and perfectly. We have to listen to how the Infinite talks to us and leads us. Reality, Life the Infinite, God, has a way of leading us in just the perfect way, if we will only just listen to it.
When you inquire 'Who am I?' if you are honest, you'll notice that it takes you right back to silence instantly. The brain doesn't have an answer, so all of a sudden there is silence.