Just to add: One of my favorite aspects of the HPS is that, Kabalistically speaking, her symbol (or special name) is "The Camel." This is because her card is the path along the tree of life that travels through an area called "The Abyss." Its this great empty stretch, viewed as dark and scary. Her emblem is the moon, and you can imagine that there, in the dark, you'd want moonlight to show you the way. But there's the other aspect of her as a camel in the desert. As distant, reserved, cool a person as she may seem to be, she is the one who can carry you across the roughest, driest, scariest areas of the esoteric.
She is "instinct"--also all those other "good" things the Moon represents (as compared to the bad things like illusions and deception)--like creativity, imagination, dreams, psychic powers. Which means you can think of her as that magical person in all those movies, the mysterious woman or man, who after gazing into the crystal ball, or at the hero's hand (or at his cards!
) tells the hero what to beware, or what to do or not do to survive in the scary woods or in the monster's castle.
She's not flashy like the magician, not part of some ancient tradition like the Hierophant, not out doing her own investigations like the Hermit. She is, rather, a quiet repository of information, the camel carrying it's own reserves of water. She is what you know, what you need to know, to survive in unknown lands.