Astral Plane/s: "Behind the veil" or "the closest plane" or the "dreamscape". There are a lot of theories, but mostly, the astral realm is full of endless and malleable possibilities. The astral plane, also called the astral world, is a plane of existence postulated by classical (particularly neo-Platonic), medieval, oriental and esoteric philosophies and mystery religions. It is the world of the planetary spheres, crossed by the soul in its astral body on the way to being born and after death, and generally said to be populated by angels, spirits or other immaterial beings.
Astral Projection: Commonly confused with OBE or "Out of Body Experience". Astral projection can occur for several reasons (examples such as near-death experiences and practiced meditation). It is when the "soul" travels from the material/physical plane into the astral plane.
Athamé: A ceremonial dagger, with a double-edged blade and usually a black handle. It is the main ritual implement or magical tool among several used in the religion of Wicca, and is also used in various other neopagan witchcraft traditions.
Amulet: An object believed to have protective power. Amulets are used to ward off negative or evil energies. Bells, fumes, running water, the cross/crucifix, tefillin, crystals, etc.
Book of Shadows: A witch's spell book or journal.
Chaote & Chaos Magic: A school of the "modern magical traditio"n which emphasizes the pragmatic use of belief systems and the creation of new and unorthodox methods. Basically, "the power of belief" is key. Ties in with Discordianism.
Circle Casting: A magic circle is circle or sphere of space marked out by practitioners of many branches of ritual magic, which they generally believe will contain energy and form a sacred space, or will provide them a form of magical protection, or both. It may be marked physically, drawn in salt or chalk, for example, or merely visualized.
Consecration: In many Wiccan and Pagan traditions, magical tools are consecrated before use. This achieves a couple of things -- one, it purifies the item before it is used to interact with the Divine. Secondly, it removes any negative energies from the tool. This is particularly handy if you aren't sure of a tool's past history or who owned it before it came to you. This ritual is a simple one that can be used to consecrate any magical tools, clothing or jewelry, or even the altar itself. By offering the tool to the powers of the four elements, it is consecrated and blessed from all directions.
Dantalion In Christian demonology, he is a powerful Great Duke of Hell, with thirty-six legions of demons under his command; a Jinn, he is the 71st of 72 spirits of Solomon. He teaches all arts and sciences, and also declares the secret counsel of anyone, given that he knows the thoughts of all people and can change them at his will. He can also cause love and show the similitude of any person, show the same by means of a vision, and let them be in any part of the world they will. He is depicted as a man with many appearances, which means the faces of all men and women. There are also many depictions in which he is said to hold a book in one of his hands.
Demonology: The study of demons or demonic beliefs.
Discordianism: Both a religion and parody religion based on the worship of Eris (also known as Discordia), the Greco-Roman goddess of chaos. The religion has been likened to Zen, based on similarities with absurdist interpretations of the Rinzai school, as well as Taoist philosophy. Discordianism is centered on the idea that both order and disorder are illusions imposed on the universe by the human nervous system, and that neither of these illusions of apparent order and disorder are any more accurate or objectively true than the other. Discordians use subversive humor to spread their philosophy and to prevent their beliefs from becoming dogmatic. It is difficult to estimate the number of Discordians because they are not required to hold Discordianism as their only belief system, and because there is an encouragement to form schisms and cabals.
Dittany of Crete: An herb or incense burned to conjure spirits and to aid in astral projection.
Evil Eye: The evil eye is a look that is believed by many cultures to be able to cause injury or bad luck for the person at whom it is directed for reasons of envy or dislike. The term also refers to the power attributed to certain persons of inflicting injury or bad luck by such an envious or ill-wishing look. The evil eye is usually given to others who remain unaware. When worn or used as a talisman, as a class, they are called "apotropaic" (Greek for "prophylactic" or "protective," literally: "turns away") talismans, meaning that they turn away or turn back harm.
Grimoire: Similar to Book of Shadows: A book of magic spells and invocations.
Necromancy: A claimed form of magic involving communication with the deceased – either by summoning their spirit as an apparition or raising them bodily – for the purpose of divination, imparting the means to foretell future events or discover hidden knowledge. The term may sometimes be used in a more general sense to refer to black magic or witchcraft.
Occult: Supernatural, mystical, or magical beliefs, practices, or phenomena. Esoteric: the truth which is hidden, basically.
Pentagram/Pentacle: A pentagram is a five-pointed star that is formed by drawing a continuous line in five straight segments, often used as a mystic and magical symbol. A pentacle is the same five point star within a circle, same thing basically, though more oft used for protection or as a general symbol of the craft.
Poppet: In sympathetic magic, a poppet is a doll that is used to represent a person. Poppets are often created for healing or protection. The “Voodoo Doll” is an example of a poppet. The poppet is created to symbolize the individual, and then is often filled with herbs, stones, or other magical items to bring about the manifestation of spellwork.
Rosicrucianism: A Hermetic/Christian movement dating back to the 15th century. Rosicrucianism is a philosophical secret society. It holds a doctrine or theology "built on esoteric truths of the ancient past", which, "concealed from the average man, provide insight into nature, the physical universe and the spiritual realm." This movement is symbolized by the rose (the soul) and the cross (the body of the four elements).
Runes & Aettir: Runes are an ancient form of divination, and they are usually made from wood, stone, or crystal. There are many versions of the runic alphabets. Each has variations in names, shapes, esoteric meanings and magical uses. The runes are broken into three sections or groups of eight, called aett (aettir, plural).
Seancé: A meeting at which people attempt to make contact with the dead, esp. through the agency of a medium.
Sigil: A sigil is a magical symbol that represents a concept or tangible item like a person or place. A Pagan or Wiccan may inscribe a candle, talisman or amulet (or anything else) with a sigil that means health, prosperity, protection, love, etc. Sigils can be created by hand or obtained from other sources. From what I've read, an unorthodox use would be, usually you burn the parchment marked with the sigil and put it out of mind in order for what you are symbolizing to come true/happen.
Tarot & Major/Minor Arcana: Tarot reading revolves around the belief that the cards can be used to gain insight into the past, current and possible future situations of the subject (or querent), i.e. cartomancy. Some believe they are guided by a spiritual force, while others believe the cards help them tap into a collective unconscious or their own creative, brainstorming subconscious. Major Arcana or "trump cards", consisting of 22 cards without suits. Minor consist of 56 cards broken into 4 suits: swords, wands, pentacles, and suits.
Thaumaturgy: Thaumaturgy (from the Greek words θαῦμα thaûma, meaning "miracle" or "marvel" and ἔργον érgon, meaning "work") is the capability of a saint to work miracles. It is sometimes translated into English as wonderworking. A practitioner of thaumaturgy is a thaumaturge, thaumaturgist or miracle worker.