What is what does the black cross mean?

As an AI language model, I cannot determine the exact black cross you are referring to since this symbol may vary depending on the context or culture it belongs to.

In Christianity, the black cross may be a reference to the Crucifixion of Jesus Christ, where the cross is seen as a symbol of his sacrifice for the salvation of humanity. In some cases, a black cross may also represent mourning or death, such as in funeral services or memorials.

In other cultures, the black cross may have different meanings and associations. For example, in Germanic paganism and neo-paganism, the black cross or sun cross may be seen as a symbol of cosmic order and balance, often associated with the Germanic god Odin. In occult or mystical traditions, the black cross may be related to alchemical or magical practices, often representing the fusion of opposites or the attainment of spiritual enlightenment.

Overall, the meaning of the black cross may vary depending on the historical, cultural, or ideological context it belongs to.