"The Host"
The Host (Communion Bread)
GNU Free Documentation LicenseThe Host (Communion Bread) - Credit: Waelsch/Wikimedia Commons

‘The Host’ is the consecrated communion bread (actually more like a wafer) used in the Christian ritual of the Eucharist. Some Christians believe that during the rite the bread is changed into the flesh of Christ (and the wine becomes his blood); others believe they simply represent his body and blood. Either way, the communion bread and wine are sacred substances. Here, Van Helsing uses communion wafer mixed with dough to seal up the tomb, creating a holy barrier that the vampire Lucy will not be able to cross.