In this world of chance and change and mutability, the fulfillment of any resolve depends on the will of the Lord.
The natural movement of one's soul is upwards. But just as any object is dragged down when a heavy weight is tied to it, the burden of the body drags down the soul.
The main reason why we look constantly to the Gita is that, whenever we need help, we may get it from the Gita. And, indeed, we always do get it.
If we could only snap the fetters of the body that bind the feet of the soul, we shall experience a great joy. Then we shall not be miserable because of the body's sufferings. We shall become free.