Swami Mukundananda
Why is self-discipline painful and how do I get through it?
Bear the pain to build willpower
When you train, you have to tolerate pain, even as the mind and the senses scream for you to forget it. The prefrontal cortex gives you the willpower to do the right thing even though it is more painful.
When you train, you have to tolerate and bear pain. The mind and senses scream, "Come on, forget it," but if you can tolerate that pain, you grow.