An explanation.
Years ago, Anointing of the Sick was called Extreme Unction and it was only administered to those who were in danger of death, or known to be dying. Sacraments and prayers together were—and still are—called "Last Rites" and they prepared the soul for the death of the body.
The Catholic custom of the sick call set developed long ago, when most people died in their homes. Catholics kept these special sets on hand to provide everything necessary for the Anointing of the Sick. A sick call set consists of a wooden Crucifix, with hollowed spaces in the interior. Sliding the lid downward reveals the interior compartments which hold white taper candles and a holy water bottle all stored in preparation for a "sick call." Candles are inserted into the base and the holy water is used to anoint the sick, or if a priest is present will use oil.