"
After our time has passed
We're like light through stained glass.
We go on, and on, and on,
In the end we’re never gone
I think this means that when you feel like you are just going to give up and that nothing is worth it, to remember that you are worth something and to keep going just like the light shining through stained glass. Also, it hints at the fact that there is an ending to all of the pain someone is feeling and once it finally ends, you are still here, and you are stronger than you have ever been because of what you have been through.