I contend that for a religious ritual to be “alive” is for it to be responsive to spiritual truths as they are played out by or among the people who have gathered even just as spectators rather than participants. In liturgy, the readings and the ritual itself can stimulate a spiritual state of mind (un état de l’esprit—this last word alone signifying the connection), which in turn can even unconsciously prompt conduct that can be observed to be religious (or spiritual) in nature. For a ritual to be alive is for it to incorporate such conduct in order to draw attention to the underlying religious truth manifesting in one or more persons. The antagonist in this drama is the strict literalist who goes inflexibly by the letter of the ritual’s laws rather than the spirit thereof, ignoring that only the spirit rises and thus is capable of lifting humans in general and in a liturgical context in particular.
The full essay is at "Living Ritual."