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not trying to sound pesimistic or anything but is the reason that garlic is an herb is that we are trying to get rid of the cool vampires? confused confused

Traditionally associated with longevity, sage has a reputation for restoring failing memory in the elderly. Like other memory-enhancing herbs, it was also planted on graves. It is said that when the British started importing tea from China, the Chinese so valued the herb they would trade two cases of tea for one of dried English sage.
There are several species of the sage herb, each with its own characteristics that make them have different uses.
The leaves and stems are used in cooking for flavoring sausages, pork, sauces, cheese, dressings and stuffing. Sage is also brewed for tea.
Sage herb can be used as an antiseptic and anti-fungal; it improves the digestion, and this is why it is sometimes used with heavy meals. It will also help control diarrhea. The purple variety of S. officinalis is generally used in medicine, and is more effective than the green plant. In China, the root of a related plant, S. miltiorrhiza (dan shen), is used as a tonic herb.
The Artemisa variety is very bitter, great as an insect repellant, and can be sprayed with alcohol after the plant is boiled to let all it's juices out. This variety is not intended for cooking.
LearningInfo.org

Many people like to purify by smudging. Sage is a very commonly used smudge. If you can gather and dry your own wild sage for smudging, do so. Just light a sprig of dried sage (You can carry a little tray or saucer under the lit sprig, in case some burning bit drops) and carry it from room to room, visualizing any negativity being replaced by the purifying fragrance of the sage. One can also make a protective sigil at each window and doorway, thus purifying and protecting in one fell swoop!

Herb Magick, Wolf Moon Coven website