I always had a question What is does luck really means.

I got the answer after reading this words.

I don't know the writer's name but the words are really great.

LUCK

He worked by day
And toiled by night.

He gave up play
And some delight.
Dry books he read,
New things to learn.
And forged ahead,
Success to earn.

He plodded on with
Faith and pluck;
And when he won,
Men called it luck.
--Anonymous