Faith is a window.
When you look out a window you see what is outside of your house. You can't touch it, you can just look through the window and know that no matter how long you stay inside your house there is a whole other world outside your house as real as what you see inside.
So when you have faith its like a window. You can look through the window out on to the real world....it gives you a glimpse outside of our earthly perspective to see what God has waiting outside for us. So fill your life with windows...windows of faiths so that you can see what you don't yet have but nevertheless hope for and know to be true.
"Now Faith is being sure of what we hope for and certain of what we do not see."