Answer:
Golden treasure I contain, Guarded by hundreds and thousands. Stored in a labyrinth where no man walks, Yet men come often to seize my gold. By smoke I am overcome and robbed, then left to build my treasure anew
Some try to hide, some try to cheat. But time will show, we always will meet. Try as you might, to guess my name. I promise you'll know, when you I do claim.
They belong to me; they belong to you; They can make you feel happy or make you feel blue; They never end until the day you do.
In buckles or lace, they help set the pace. The farther you go, the thinner they grow.
Walk on the living, they don't even mumble. Walk on the dead, they mutter and grumble.
What is so fragile that saying its name breaks it?