Complex sentence: Humility is not to think lowly of oneself, but to appreciate the self one has received; in recognition of the mysteries and complexities of life, one becomes humbled to the awesomeness one is and what one can achieve.
Split into simpler sentences: Humility is not to think lowly of oneself, but to appreciate the self one has received. In recognition of the mysteries and complexities of life, one becomes humbled to the awesomeness one is and what one can achieve.