In Chapter Six of the Gita, Arjun complains to Lord Krishna that the mind is jumpy and as hard to control as the wind. Lord Krishna agrees. He points out, however, that the task of controlling our minds is achievable, little by little, if we practice steadily.
More importantly, God explains that success is not essential. If we pursue self-control, God will bestow his endless love upon us (whether or not we even believe in Him).
In essence, controlling and directing our minds is tantamount to worship and pulls us toward spirituality or God. Along the way good karma will bring us good lives and our spirits will remember even what we forget.
see The Gita, A New Translation of Hindu Sacred Scripture by Irina Gajjar.