A beautiful Kapampangan word, MAGDARÁMÈ. It means "to volunteer to take part in someone else's predicament" (root dámè, like the Tagalog damay), which is a more profound version of the English idiom "to walk in someone's shoes." Holy Week penitents flagellate themselves or carry crosses not just to imitate Christ, but to join Him in suffering as a way of easing His pain. They are fellow sufferers, participants in a mystical relationship in which the penitents imagine that Christ is still suffering today, and by approximating, or taking part in, or taking a piece of, Christ's suffering, they actually comfort Him.
Of course many penitents today do it for a myriad of reasons, like asking for favors, thanking God for favors already granted, continuing a family tradition or a personal 'panata,' and tourism.