Sethbag wrote: A mustard seed is pretty darn small, and this wasn't moving a mountain, it was just a little step out onto the pond.
You know, one mustard seed is made up of quite a few molecules, and even more quarks. Maybe you had a quark of faith, but you needed orders of magnitude more to move mountains?
Actually, I think that while a little faith can move mountains, it also must be the case that we are in tune with God's will. That is perhaps the most difficult task. Peter walked on water because Jesus told him to come. God wanted it to happen.