Seeing yourself firing a mortar at a castle belonging to Muslims with a mortar in your dream means that you will hear words that will harm Islam and perhaps harm will come from these words. Seeing yourself firing a mortar at a foreign country or castle is evidence of being dominant over the religion of Islam and protecting the borders of your country. If the cannon is damaged, it will harm the enemy. It is a sign that you will be victorious. The bullet of a mortar can also be interpreted verbally.
It is not auspicious to see a mortar bullet touching oneself.