It has allowed me to rule my empire for well over two thousand sweeps. If my math is correct--and I do not doubt it is!--that would be almost five thousand of your human years.

It does not inherently guarantee one to live forever; you could live an extra one, ten, or fifty of your years while retaining your youth. Or, simply healing an incurable illness.

There is more to it than outliving those around you; keep it in mind.