You know what happens when we hold on to something too tightly? We crush it. Deprive it of air. Forbid it of room to move, grow, adapt or change altogether.
You know what happens when we hold on to something to loosely? It slips through our fingers and dissipates. Evaporates. Becomes nothing. Lost forever to any opportunity to move, grow, adapt or change altogether.
My point is this: We can't hold on to things too tightly or too loosely. We need to cradle and uplift these "things" - whatever they may be - and hold them in such a way that will allow them to be molded by God. Ultimately, everything is a result of His planning. Imagine then, that as you hold up your "thing", He holds His hands gently and warmly around yours. You can try as you might to break away from those hands, but it will always be in vain. May as well just relax into Him, allow Him to take control and rely in the knowledge that He knows whats best for you.