"Great opportunities to help others rarely come, but small ones surround us every day."
Life allows us to continually help others, to serve, not necessarily great things, but those little things (for us) can mean a lot to those who receive help from us.
Collaborating with someone of advanced age to cross the street, get on or off the bus, could mean for this person a gesture that encourages him during the course of the day.
Perhaps we still lack experience to finish understanding that life is full of small moments, details that stay with us. And they don't necessarily imply supernatural things.
Of course, those great things mark us, we don't forget them, but unfortunately and fortunately they are not the usual ones.
Then let's make those little moments big...