It's like those inspirational sayings found on motivational posters. Sayings like: "No pain, no gain." And "When the going gets tough, the tough get going" etc. Recently I saw a list of slightly more honest sayings for office walls:

Hang in there, retirement is only thirty years away!
When the going gets tough, the tough take a coffee break.
Aim Low, Reach Your Goals, Avoid Disappointment.

Many people live their lives according to that last motto: "Aim Low, Reach Your Goals, Avoid Disappointment." But when Jesus calls us it is to head out into deep waters, to get out of our comfort zone, to let down our nets on the other side of the boat, to trust that he's leading us into something greater than the life we used to know.