God tests and proves us by the common occurrences of life. It is the little things which reveal the chapters of the heart. It is the little attentions, the numerous small incidents and simple courtesies of life, that make up the sum of life’s happiness; and it is the neglect of kindly, encouraging, affectionate words, and the little courtesies of life, which helps compose the sum of life’s wretchedness. It will be found at last that the denial of self for the good and happiness of those around us constitutes a large share of the life record in heaven. And the fact will also be revealed that the care of self, irrespective of the good and happiness of others, is not beneath the notice of our heavenly Father.
– The Adventist Home, pg. 108