What factors influence our drive to persist? Perhaps instead of encouragement along the way, we're exposed to criticism that inhibits our progress. By contrast, an appreciative audience can spur us on like a favorable tail wind.
Unfortunately, pretending that you don't feel what you actually feel doesn't make the feelings go away. Yes, you can suppress them so that you aren't fully in touch with them for a short time. But feelings that you are not in touch with still affect your health and your behavior.
Everyday, run-of-the-mill negativity abounds, from greed and corruption to negative emotions, judgments, and plain old nastiness. And yet some part of us keeps on getting up one more time than we stumble and fall.