If you dream that you are surrounded by fog, it can be a warning that you are hiding something important from yourself.
Having a dream about being in a fog can mean that you are refusing to face an important fact about a situation in your life, or that you are denying a truth about yourself.
A dream of being in a fog can mean that you are focusing on trivial matters and refusing to deal with an important issue.
Walking aimlessly in a fog in a dream can mean that you are making choices based upon what other people tell you to do, instead of relying on your own knowledge and wisdom. Rather than choose the direction that you are taking in life, you are allowing others to choose it for you.
Walking in a fog in a dream can mean that you have made a decision without having sufficient information, and you will have to suffer the consequences of making an uninformed choice.
If you are lost in a fog in a dream, it can mean that you are feeling confused about a situation in your life.