Taken from a great blog http://themindfulmoment.blogspot.com/
Who Am I?
Over the years, as I meditated, I started to notice how the mind itself displays very similar characteristics to aspects of nature. And over time I started to use metaphors to describe aspects of the mind to people to make it easy to understand. For example, the mind itself displays very similar characteristics to the sky. It is vast and expansive and no matter how far you go you never actually perceive any boundaries. If you throw a ball through the sky it passes through unattached. Clouds arise out of nowhere and disappear again as if they never existed - effortlessly, silently, and without resistance - much like the nature of thoughts in the mind. The mind also reacts to the environment and displays symptoms of cause and effect - when we perceive something, thoughts or emotion arise with them in a dance of interaction. Ideas are born into the mind out of nowhere much like a new seedling is born and later it will die away like a fading flower. This ability for the mind to display characteristics of nature always fascinated me.
While meditating yesterday a deep insight came over me ... the mind doesn't display these characteristics because it is similar to nature, the mind displays these characteristics because it is nature, it is all these things, it is everything. It was so simple. The mind is not made from some "other" component, it is not made from something that you can strive to understand or experience separate from everything else, the mind quite literally is This, is everything that you are experiencing now. It behaves in the same way as the sky, as clouds, as the wind because it is bound by the same laws that bind everything else and it is made from the same stuff that everything else is made from. There is no difference.
How to Apply This
Now those sound like really wise words and if you pick up any spiritual book you'll read lots of stuff like that. But this doesn't really help you at all and me saying it doesn't really help you understand or make your life better. You can read a tonne of spiritual books that talk about this concept and you'll feel good reading it and it will inspire you to want to know more but its kind of useless if you doesn't lead you to experience this for yourself.
In many traditions you'll see this idea being expressed. In Buddhism they ask "What is your true nature?" or "What is your true name?". You don't have to think about it. Just stop again for a second, feel yourself breathing, look around, notice the sensations in your body. Yes, this is your true nature. Christ said "I am the way, the truth, and the life". This is the same point. Breath again for a second, relax and be aware ... this is truth ... seeing, hearing right now ... this is the life ... breathing, feeling, practising being mindful ... this is the way. This direct experiencing in this moment is the way. Who is God? Return to the direct experiencing of life again, be aware, feel your breath ... This is God. This is death. This is the Tao. This is eternity. This is life. This is enlightenment.
Looking around, breathing, experiencing, being aware ... ah yes, this is Me!
But this is not the "me" I use to know, this is not the "me" we colloquially or conceptually know, this is not the small "me". This is the "no me", the big Me that is everything. The "I" as I knew it before is just a drop in an ocean, why call itself any different? With this view a profound peace pervades Me, why struggle or resist the meditation practice? How can I deny it at all? This is like denying truth, this is like denying the way It is. I must meditated because this is the way it is, this is truth, this is also is what I am, what I am made of, what My nature is. This is Me!