Sometimes it is easier to keep tethered to the dock. We want to avoid going out into the water because the water is rough or we are afraid we will not be able to swim.
Our faith can act like our life jacket. We will always have God as the captain of our ship and the calmer of the seas.
We must keep our faith in the water. We will not be left alone. We may not know how to swim in the real seas, but God will help us stay afloat in the seas of faith. We just need to believe.