In the religious system of Orisha

Orisha

An Orisha is a spirit or deity that reflects one of the manifestations of Olodumare in the Yoruba spiritual or religious system....

 worship, Babalú-Ayé is the praise name of the spirit of the Earth and strongly associated with infectious disease, and healing. He is an Orisha, representing the deity Olorun

Olorun

Olòrún is the Yorùbá name given to a singular being in theistic and deistic religions , Who is either the sole entity in monotheism, or a single entity in polytheism...

 on Earth. The name Babalú-Ayé translates as “Father, lord of the Earth” and points to the authority this orisha exercises on all things earthly, including the body, wealth, and physical possessions.