The joyful signs!

After the victory is won, one always feels one has expended more energy than was actually required for the task. But strangely, this insight is unavailable when one is actually going through the process, as one always feels pressured to spend as much effort and energy as one did. (The growth of the child or any process of self-overcoming has this peculiar structure of strife and pain).
However, the seemingly excess energy that appears at the end of the process will not have gone to waste. It shows up as the profound joy and power of the conquerer!