Prelude to Proverbs

What is so hard about Proverbs – I bet, dear reader, that you think it is so easily read and understood, that it hardly merits any time.   However, notice in the opening of the book, that much of wisdom is in knowing how to understand a wisdom writing.  It is not as easy as you might think:

Proverbs 1:1-7 (ESV)
    The proverbs of Solomon, son of David, king of Israel:
    [2] To know wisdom and instruction,
        to understand words of insight,
    [3] to receive instruction in wise dealing,
        in righteousness, justice, and equity;
    [4] to give prudence to the simple,
        knowledge and discretion to the youth—
    [5] Let the wise hear and increase in learning,
        and the one who understands obtain guidance,
    [6] to understand a proverb and a saying,
        the words of the wise and their riddles.
    [7] The fear of the Lord is the beginning of knowledge;
        fools despise wisdom and instruction.

  Take verse 7, is it saying that irrelgious people are ignorant?  What is it trying to say?