'Rav Shimshon Pincus says that the reality of life is a constant pendulum swing between good and bad moods. Because when we're at rock bottom we pray and fast. But when we're soaring, we become complacent. Why? because we think "all is good" and this is exactly where we peak. Because we're not asking anymore. And what's the point of living if not for davening to Hashem and building a relationship? So he advises that to break the dangerous cycle, never think "all is good". Think "all can be better". And this is probably how the gedolim achieve so much. because it can always get better. We don't have the beis hamikdash, do we?' 
Very true, thanks for that.