1. Stock market corrections happen often -  The first thing you should know is that stock market corrections happen -- and fairly often. The U.S. economy naturally peaks and troughs over time, and in response the stock market will also have its peaks and troughs.

​2. Stock market corrections rarely last long - In a broader context, while a stock market correction is an inevitable part of stock ownership, corrections last for a shorter period of time during bull markets.

3. We can't predict what'll cause a stock market correction - A stock market correction may be inevitable, but one thing they aren't is predictable.

4. Stock market corrections only matter if you're a short-term trader - Another important point you should realize is that stock market corrections really aren't an issue if you remain focused on the long term with retirement as your goal. The only people who should be worried when corrections roll around are those who've geared their trading around the short term, or those who've heavily leveraged their account with the use of margin.

5. They're a great time to buy high-quality stocks at a bargain - For the long-term investor, a stock market correction is often a great time to pick up high-quality companies at an attractive valuation. While trying to time a market bottom is generally a bad idea, a market correction can be a great time to add stocks to your portfolio that could make excellent long-term investments, but that previously seemed a bit too expensive.

6. They're also a good reminder to reassess what you own - Lastly, a stock market correction is a good reminder for long-term investors to reassess their holdings.