When you use it, it grants you paranormal speed. It's how the 4th Hokage is named the Yellow Flash. I personally think I'm having doubts about the box the mummified scientist is holding too. What if after all this time they found out the box contained baby photos of Kilik or other Destiny's Chil.. I mean Gravity Child. If Kilik really wanted it destroyed why not just cut the mummy wrappings thats holding the mummified man and the box in place to have it fall in the very depths of whatever was glowing inside that mako reactor looking thing? Kilik really is dumb since destroying it completely will make their jobs that much easier to seal it than to keep a 24/7 guard, making more and more enemies on the way.