I’ve already read in several places (can’t remember where, right know) about this possible relation between L’ Hermite and Anthony the Abbot. Here are some representations of Saint Anthony the Abbot; the one from Fra Angelico is particularly interesting.
http://www.catholic-forum.com/saints/sta06001.htm
Saint Anthony's cross is a T, or tau-shaped cross, a kind of cross that could very well be “mistaken” with a traveller’s stick. His story is the typical story of a ermit: he abandoned his confortable life and went to the desert for 20 years, looking for loneliness, though always seached by devotees. He personally had nothing to do with leper, but could cure skin deseases, so he eventualy got to be portraited with a bell.
An interesting trait of this character is the fact that he was also often portraited with a pig. This is the explanation why: “Skin diseases were sometimes treated with applications of pork fat, which reduced inflammation and itching. As Anthony's intervention aided in the same conditions, he was shown in art accompanied by a pig. People who saw the art work, but did not have it explained, thought there was a direct connection between Anthony and pigs - and people who worked with swine took him as their patron” (from
http://www.catholic-forum.com/saints/sainta06.htm). But the pig is also a symbol of the devil, and the image of the saint with a bell and a pig was also interpreted as meaning that he could ward off the devil (with the pure, “catholic” sound of the bell).
He is also the “founder” of the eremitic concept. But, more than a hermit, he was in fact a misogynist, as you can read in
http://www.sacredspiral.com/Database/saints/6saint.html.
He is, most of all, the biggest symbol of a Hermit the Catholic Church has to offer. In that point, there is no doubt about the card’s name and the figure represented.
Now, about bell or lamp, both of them are generally related to worship. The bell calls people to the temple; the light is a symbol of God’s presence, and also of man’s faith (those who keep the lamp burning).
In the Bible, the bell is mentioned as a distinctive feature of the High Priest, as in the small golden bells attached to his dress (Ex. 28:34: “A golden bell and a pomegranate, a golden bell and a pomegranate, upon the hem of the robe round about”).
As to the lamp… "Your word is a lamp to my feet and a light for my path." Psalm 119:105