Paris Hilton is turning to a higher power -- no, not Lee Baca -- to get through her prison ordeal. Heaven help us!

Law enforcement sources tell TMZ that while Paris' medical condition has stabilized, she is emotionally still extremely fragile and is holding on by a (100 count) thread. We're told she prays constantly in her cell, asking for strength.

According to sources, Paris says support from her family is the only thing that is sustaining her. That and the prison gruel.