Here is a quasi-scientific response:
There's a very important distinction between luck and chance. Chance events are those over which we have no control, like winning or losing the lottery.
Dr. Richard Wiseman:
But luck is different. I think luck in life; you know who we meet or whether we're in the right place at the right time. I think those are very much under our control.
Dr. Richard Wiseman conducted an extensive study of lucky and unlucky people the results of which are in his book The Luck Factor.
For example, a lot of lucky people will say, "I often have really chance encounters. I just often bump into people. We get chatting, and this person has a very positive effect on my life." It turns out that lucky people are the extroverts. They're the ones that are out there meeting lots of people.
And your expectations are also a critical factor in luck.
And those expectations have the power to be self-fulfilling prophecies. So, people who are lucky persevere in the face of failure, because in the long term they expect to do well. Also, it influences how others respond to them. They walk into the interview situation, for example, thinking they're going to be lucky. And we've seen in various experiments how the interviewer's behavior then changes towards them to give them more opportunity to do well in the interview.
http://www.somethingyoushouldknow.net/transcript05_05_03.htm
