How do I know that God is real?

How do I know that God is real? I've never seen him. I've never heard his voice, yet I know.
Having never seen the air, somehow we have experienced it, breathed it in; and it has given us life.
I have seen the air move things, the trees blowing in the gentle breeze. And powerful gusts that require our respect.
I have observed a balloon take on a new shape, a new identity when filled with an invisible air.
I have exercised my faith in scientists I've never met that tell me about the molecules in the air I cannot see.
Certainly they are right in their beliefs.
If I were to deny that air exists, I would still breathe it and require it to survive.
In fact, the more I do, the faster my pace, the more I gasp for air and am reminded of my need for it.
I have seen God move, fill and satisfy.

My eyes have been witness to things that only God can do. People that he has drawn to himself, Secret wishes that only he and I knew about, fulfilled to overflow. Coincidences that no one could orchestrate.

Peace in the storms of my life, Calm in my panic and rest in my weariness. Joy in the midst of trouble, and perseverance during darkest times. God has given understanding during times that lack human explanation. My soul had a God-shaped void that no man, job, status or wealth could fill. A perfect Savior for an imperfect me. A sure future. A heavenly home because of a cross I have never seen, an empty tomb that filled my emptiness. A non-wavering, never-changing God that engages my ever-changing life and fills it, satisfies it, loves it and has always kept every promise.

The ocean, the mountains, the spinning solar system. Someone out there is bigger than me. He is not tired or impatient when I do not believe him. He will never cease to exist and his love will never end. I have seen too much!