Who am "I"

This is the question that has been asked by mankind probably ever since the beginning of time (If ever such a thing as "Beginning of of time" exists). I myself have always wondered about the question, though not as intensely till one night last month. It was an amazing experience which really hit me hard. (I purposely don't say "got me thinking" because our capacity to think and find answers to questions of spirituality is still in its infancy. That is the reason why most of the ancient Indian scriptures are compilations by different great sages and don't have authors. But more on that later).
So back to our original question - Who am I. Last month I had to stay home by myself since hubby and children were traveling for 3 weeks. This was absolutely the first time that I had ever stayed without my kids and I did not realize how difficult it would be until they left. Next day itself, I came down with very high fever, cough and cold. It was so bad that I could hardly get out of the bed for 4 days. I was missing my kids extremely. And they were missing me too. Now, third day early morning I had a very beautiful experience. "I" could experience my kids sleeping peacefully next to me. "I" looked at them, cuddled them and started thinking, how's that possible. The experience was so very real that I started telling myself that maybe my kids leaving me and going with their dad was just a dream. Only my husband has gone and would be back in 3 weeks. Thinking that "I" got out of the bed and went to another room which was also very very real. And then "I" heard someone doing the laundry. "I" went downstairs and saw that my husband was doing laundry. I was very very surprised and knew that they had returned in 2 days. So it was definitely not a dream. I wanted to pinch my self to make me realize that all this was real. And I knew it was real. Then I started asking hubby about how come they returned in 2 days. And as soon as he started explaining which made me use my brain to think, I woke up to realize that it WAS a dream.
But was it a dream. Absolutely not. I know I experienced each and every moment of it. I know I touched my kids to cuddle them. I know I walked into the other room, heard the voices from the laundry room and then spoke with my husband.
And then if I was still fast asleep in bed, who was this "me" who was experiencing all these wonderful things. And then who was this person who was judging whether it was a dream. If it was just a dream which traditionally means visions of what we think, which essentially means it is an activity of the brain at a subconscious level, then my brain should have known that it "is" a dream and should have just left it at that. But that was not the case. My brain was confused because I was experiencing each and every moment of my dream with all my senses - touch, sight and sounds. It was the real "me" experiencing all these things whereas my brain which is a product of my physical being was trying to reason out everything. In any case I feel I experienced the real me for the first time. The energy, the light, the consciousness - was something that I had never known before.
Maybe this is just a small step towards finding the real "me". In any case it was absolutely wonderful.