A variation of a famous quote fron Star Wars. It's used to justify a great coincidence or amoment of luck, eg. when you arrive to a place at the exact moment something interesting happens.
X: Dude, you came from the kitchen just in time to watch the touchdown!
Derived from Star Wars in which various characters use the line to describe someone as powerful in the Force. Also used to describe someone with a very valuable ability and/or talent that is innate and unlearned as opposed to something worked at or achieved by effort.
From American Pie 2:
(Oz accidentally runs into a bunch of women, and they follow him back to a formerly sausage fest party)
Jim: Incredible.
Stifler: (Nodding) The Force is strong in him.