A coffin symbolizes you need to eliminate negative influences from the past. A negative aspect of you has to die before a positive aspect can find expression. For example, to dream of the death of your father means you need to eliminate negative influences from your father. This can be an influence that leads to dysfunctional behavior but does not have to be. For example, a woman who was in a long term relationship and already had a child from a previous relationship, felt her parents would disapprove of her having a second child by a different man. This was enough to stop her until she dreamed of her father dying, followed by dreams of being pregnant.