To dream of the cross represents sacrifice. You may be giving up habits, belongings, beliefs, or some part of yourself for a greater purpose. It may also symbolize sacrifices you are making for other people, or caring more about others than yourself. Feeling good about making a big change.
Negatively, a crucifix may reflect feelings about looking stupid in front of other people because you made a bad decision. Making an example of yourself that causes suffering. A moment of difficult suffering. A difficult choice that may require suffering. Sacrifice being made for bad people. Trying hard to maintain an unhealthy relationship.
Although the origins for the symbolism of a cross would appear connected to Jesus Christ, the cross is actually a cube that has been unfolded. The cube represents the universe, or a perfectly balanced space. The symbol for sacrifice is then derived from the concept of giving up or unraveling perfection.
Example: A man dreamed of wanting to fall back onto a crucifix. In waking life he was considering risking leaving his workplace and looking for a new job. The crucifix in this case may have reflected his feelings about risking looking stupid making a big change.
Example 2: A woman dreamed of having to a bloody crucifix placed on her chest. In waking life her husband had died and she felt that she had to endure the rest of her life taking care of her daughters without him.
Example 3: A man dreamed of seeing a crucifix with blood coming out of it. In waking life he felt he became friends again with someone from his past that was a bad influence. he felt that his efforts to maintain the relationship were going to make him look like a failure to other his other friends. The crucifix in this case may have reflected his feelings about strong efforts to maintain the bad friendship that he felt wasn't a good idea.