What does it mean if you dream that your dead father is in the casket and he got up?

An accurate interpretation would depend on whether your father is actually deceased. In general, dreams of death and the images associated with death usually refer to significant changes or transformations. Seeing your [living] father in a coffin could represent the transformation of the dreamer's relationship with the father, moving from childhood dependency to adult independence, with less need for the father's protection and guidance.

> Alternatively, if the father is very elderly or has been ill, the dream could demonstrate the dreamer's fear and recognition that the father will eventually pass away.

> The bit about your (deceased) father opening his eyes suggests that you feel watched, perhaps by your actual father, whether living or deceased, or by some other authority figure that you thought no longer needed to be considered.