This sentence tells us not to ignore the little things and details in life, because they can often reflect a person's quality and spirit. For example, at work, doing every little thing well and taking every detail seriously is a great spirit in itself; In life, caring for others, helping others and respecting others, these seemingly ordinary things, can also reflect a person's noble character and great spirit.
Therefore, we should pay attention to details, small things, persevere, accumulate small good for great good, see greatness from the ordinary, and see spirit from the subtle.