Interesting comparison between IQ, EQ and SQ

I used to be a fan of IQ in my childhood until engineering. Then I started to notice that EQ is probably more important then IQ, because I read about and witnessed loads of successful people who had average IQ scores. Now, I'm wondering about what is SQ and what it really means.

An article I read explained this pretty well
Link: http://www.lifepositive.com/mind/evolution/iq-genius/intelligence.asp

Included below, is a part from the article:

Spiritual Quotient (or SQ) is the ultimate intelligence, they claim. This is the intelligence used to solve problems of meaning and value. "Is my job giving me the fulfillment I seek?" "Am I relating to the people in my life in a way that contributes to their happiness and mine?" Answers to these questions determine whether we will find happiness or not. IQ and EQ are inadequate in such issues. SQ is about being able to heal ourselves of all the resentment we carry. It is thinking of ourselves as an expression of a higher reality. It is also about how we look at the resources available to us.

The transformative power of SQ distinguishes it from IQ and EQ. IQ primarily solves logical problems. EQ allows us to judge the situation we are in and behave appropriately. SQ allows us to ask if we want to be in that situation in the first place. It might motivate us to create a new one. SQ has little connection to formal religion. Atheists and humanists may have high SQ while someone actively religious may not.