The festival re-enacts the seven-day search for Longinus. Men and women wearing mask and costumes replicating the looks of a Roman Centurion are called Moriones/Morions. They usually roam in the streets searching for Longinus, and also serve as their way of "Panata"(devotion) or "Pagpapahirap sa Sarili"(penitence). Moriones came from the Spanish root-word morion which means mask.
Link to website: http://www.travelingmorion.com/2014/02/moriones-festival-2014-schedule-of.html