Luke 17:5-6 And the apostles said unto the Lord, Increase our faith. And the Lord said, If ye had faith as a grain of mustard seed, ye might say unto this sycamine tree, Be thou plucked up by the root, and be thou planted in the sea; and it should obey you.
The African Impala (an African antelope) are amazing creatures that can jump to a height of over 10 feet and cover a distance greater than 30 feet. Yet Impalas can be kept in a zoo inside an enclosure with a simple 3 foot wall. Why? Impalas will not jump if they can't see where their feet will land. Do we have something in common with these antelopes? Able to take great leaps of faith, but refusing to do it unless we can see where we'll land?
George Mueller said of faith, "Faith does not operate in the realm of the possible. There is no glory for God in that which is humanly possible. Faith begins where man's power ends."
In Biblical terms: "Now faith is the substance of things hoped for, the evidence of things not seen."
True faith cannot see how the landing will occur...it simply leaps under the conviction that it WILL occur. Remember, Biblical faith begins where our power ends!