Jesus told Peter to push out into deep water and let down his nets for a catch. Remember how Peter responded? "Master, we've been fishing hard all night and haven't caught a thing. BUT if you say so, I'll do it."
It really didn't make any sense, humanly speaking, but remember what happened? He took in such a big haul of fish that the nets couldn't handle it! What's the point for us today?
Do what the Lord tells you to do, even if it doesn't make any sense, humanly speaking.