<Li> Words of Institution </Li> <Tr> <Th> Practices and customs </Th> </Tr> <Tr> <Td> <Ul> <Li> Closed and Open Table </Li> <Li> Communion under both kinds </Li> </Ul> <Ul> <Li> Adoration </Li> <Li> Discipline </Li> <Li> Thanksgiving </Li> </Ul> <Ul> <Li> Reserved sacrament </Li> <Li> Feast of Corpus Christi </Li> <Li> First Communion </Li> <Li> Infant communion </Li> <Li> Viaticum </Li> </Ul> <Ul> <Li> Vessels <Ul> <Li> Paten </Li> <Li> Chalice </Li> </Ul> </Li> </Ul> </Td> </Tr> <Ul> <Li> Closed and Open Table </Li> <Li> Communion under both kinds </Li> </Ul>

What is the exposition of the blessed sacrament