On chains

Those words linger around for long,
For long enough as memory stays.
Try to forget what happened,
Try to remove the blame.
There is no turning around,
No going back to the start,
So now we have lives of yellow-black,
Under the moonlight of grey.
Our freedom is written on these chains,
Clamped tight, unmoved.
They make the fight harder,
They make you know real pain.
In the end, it is to know,
What is freedom if there are no chains?