Source: Tafsir al-Ahlam al-Kabir (Ibn Sirin)
The pillar in a dream is religion or the man who is relied upon. A pillar of iron indicates a strong ruler. Its fall indicates the death of whomever it represents.
Source: Ta'tir al-Anam fi Ta'bir al-Manam (Al-Nabulsi)
The pillar indicates the governor, the father, or the husband. Whoever sees himself carrying a pillar is bearing a great responsibility.
Source: Al-Isharat fi Ilm al-Ibarat (Ibn Shahin)
The pillar is interpreted as the king or a noble man. A short pillar indicates a short life. A pillar of light indicates a righteous scholar.