We tend to speak of people, who are cautious, as wise. On the other hand, the tempestuous person is typically seen as those who jump into things without thinking. For example, the tempestuous person is the fool who gets involved with things that lead to trouble, because they have not thought through the consequences of their actions. We think of the tempestuous person as unguarded, unsafe, and foolish.
However, the wise person is not only one who is guarded, but wisdom, according to the Proverbs, guards. As we submit and apply godly wisdom, we gain the safeguarding of God. He becomes our shield, our support, and our refuge. In this sense, wisdom looks after us.
This is a theme that will be repeated over and over again within the book of Proverbs. If you recall, chapter 1 ended with the security of the those who heed the call of wisdom (Proverbs 1:33). However, those who reject the call of wisdom, they do not come under God's protection, but rather His displeasure.
Wisdom asks - are you willing to hear? Are you teachable? Are you willing to correct and reform your life (even though it may cost you)? If you can answer in the positive, then you will dwell securely.