A sunrise could be something that is very uplifting to you. A new romantic encounter, a new idea, or a newborn baby.
This sunrise brings light into your situation and provides a ray of hope and inspiration, a tingling inclination of love, a burst of entrepreneurship or a new responsibility and with all of that you may experience happiness, bliss, and success.
Then when the sun sets, the lights will be dim, the love fades, the ideas are not producing the results you expected and the newborn cries all the time.
Do not give up on the fact that tomorrow the sun will rise again and the opportunity for the light to shine in you will come daily.
Keep living and keep striving to get the results you desire.