Thank you, Dusty!!!
Faith is a strong belief in something that you know is true - but haven't yet seen.
I have never seen the dark side of the moon myself. But I know it's there. I have faith that since there is a side of the moon that always faces the earth, the dark side of the moon has to be on the other side.
I have faith that the air around me will sustain me with each breath. I've never seen it, I can't reach out and touch it...but I believe strongly that it's there because I can inhale deeply and feel it.