Hecate represented all three aspects of the Goddess as Maiden, Mother and Crone. In her Crone aspect, symbolized by the dark moon, she was the Goddess of the Dead and the Queen of the Night. Hecate was worshiped at the intersections of three roads, where she walked with her spectral hounds, illuminating the night with her blazing torch. Those who worshiped Hecate knew the secrets of magic and sorcery, and dedicated their work to the dark goddess. The Crone aspect of women, represented by Hecate, was honored in many cultures as the wise woman, the guide to the Underworld and the great revealer of the mysteries.

Invoke Hecate for magic, witchcraft, enchantment, power, shamanism, rain, business, wealth, healing, purification, expiation, wisdom, hunting, divination, incantations, favor, prophecy, transformation, endings, regeneration, empowerment, victory, reincarnation, lunar magic, money spells, psychic work, dream magic, cauldron spells, crone power, knowledge of magic, good luck for hunters and sailors, help in the final stage of childbirth; blessing, casting spells, making charms, averting evil, finding stolen children, and protection from evil spirits. Hecate is also invoked to protect children, sailors, flocks, roadways, the poor, and the downtrodden. Invoke her as Hecabe for psychic work. Practitioners on left hand paths invoke Hecate for black magic, blasting, cursing, destruction, hexing, vengeance, necromancy, controlling demons, and calling storms that ruin harvests.

Hecate is said to be a lot more likely to give you what you need than what you ask her for, so some witches find it more effective to simply ask her to send them whatever is needed in their lives. Three torches can be used to invoke Hecate. Crossroads, tombs, and crime scenes are powerful places for her invocation. She is best invoked at the Full Moon, while the Moon is waning, and on the dark nights just before the New Moon. Hecate is only invoked after night falls, in moonlight or in torchlight.

To honor Hecate, erect her three-faced image at a crossroads where three roads meet. This is also where offerings to her are left, at Full Moon. Honey, menstrual blood, roast meat, graveyard dirt (ground patchouli leaves, alone or mixed with other dried herbs), and eggs and onions that have been used to absorb negative vibrations in the home, are all suitable offerings to Hecate. Red wine, honey, and willow water, an infusion of willow bark, are appropriate for libations to her.

Hekatombs, a Greek word used to mean any large sacrifice, was originally a sacrifice of one hundred oxen offered to Hecate. Black dogs, black lambs, and even black slaves were also once sacrificed to her, by magicians who sought her help in their workings.

Greeks who worshiped Hecate had a custom of holding Hecate Suppers in her honor, at Full Moon and on her feast days. Roast meat, honey cakes, and seeded breads are among the appropriate foods for such a dinner. It is traditional to save a bit of each of the dishes from a Hecate Supper to leave as an offering to her.

Caution should be used when invoking Hecate. She is an active goddess who is very likely to answer if you call her, but she is not one who can be easily dismissed. Invoking Hecate may be the start of a lifetime in her service, so consider this before you invoke her.