To dream of a column represents feelings about yourself, other people, or situations you are experiencing being supportive in a strong way. Negatively, you may feel burdened by having to support a situation or person for too long a period of time. Feelings about family or parents. Feelings about yourself being a supportive parent.
Alternatively, column or pillar may reflect behavior or some area of your life that is unwavering. Security or strength that is reliable.
Example: A man dreamed of standing near columns. In waking life his mother had died and he was feeling burdened having to keep up a supportive attitude for the rest of his family.
Example 2: A man dreamed of himself being physically turned into a pillar and slowly withering away. In waking life he was very old and close to death while thinking about his role as a parent no longer being important as he neared death.