The meaning is similar to the following: Even a person from a poor or humble background will one day become successful and prosperous. The good times in life are gone as soon as they are said to be gone. Life is too short. The time in the past will not be forgotten. All over again.
Overall meaning: In layman's terms: As long as there are capable and talented people, they will eventually come out. Life is too short. If you lose something, there is no chance to look back. Since you are alive, don’t blame everyone and everything else. Since you are alive, don’t blame everyone and everything else. Fight hard, young man! !
That is an inspiring saying.