Answer:
You can only have it once you have given it.
I am a precious little thing, dancing and eating all the time. Watch me from a distance, so you can feel my warm and gentle love. But don't come to close or my next meal you could be!
I cost no money to use, or conscious effort to take part of. And as far as you can see, there is nothing to me. But without me, you are dead.
A detective who was mere days from cracking an international smuggling ring has suddenly gone missing. While inspecting his last-known location, you find a note: 710 57735 34 5508 51 7718 Currently there are 3 suspects: Bill, John, and Todd. Can you break the detective's code and find the criminal's name?
What can be seen but never found that only hides in the unwound?
What is so fragile that saying its name breaks it?