Learning astronomy is a character-building experience because we could compare and analyze it in our own character and experience in life.
Sometimes we think we're superior to others and tends to be boastful that lead us to pride.
We could not see how small we are compared to others because our eyes are covered by ignorance.
We are limited and we couldn't know everything, and so we must be cautious in dealing ourselves and to others.
Remember, when we die, we become dust and soon will be forgotten, unless we've done our best to love and serve for others that will make them remember us for all eternity.