I can spark in your hand or clash in a ring, I can pair two hearts like a pull on a string. I light up the dark or decide who has won, what am I when three meanings become one?

Q Tongue Iceberg Finger Hint: I complement most and am kind of a synonym of the last.

It’s bad when I’m full And when I make a hole The feeling of forever falling

Binds us between generations Could make you dumber

I have no strength but I want it all I’ll try and try again and I sometimes fail I Reach for the stars and land on the clouds