（《拾遗》）
【释名】雷楔。
时珍曰∶旧作针及屑，误矣。
【集解】藏器曰∶此物伺候震处，掘地三尺得之。其形非一，有似斧刀者，锉刀者，有
安二孔者。一云出雷州，并河东山泽间，因雷震后得者。多似斧色，青黑斑纹，至硬如玉。
或言是人间石造，纳与天曹，不知事实。
时珍曰∶按∶《雷书》云∶雷斧如斧，铜铁为之。雷 似 ，乃石也，紫黑色。雷锤重
数斤，雷钻长尺余，皆如钢铁，雷神以劈物击物者。雷环如玉环，乃雷神所 遗落者。雷珠
乃神龙所含遗下者，夜光满室。又《博物志》云∶人间往往见细石形如小斧，名霹雳斧，一
名霹雳楔。《玄中记》云∶玉门之西有一国，山上立庙，国人年年出钻，以给雷用。此谬言
也。雷虽阴阳二气激薄有声，实有神物司之，故亦随万物启蛰，斧、钻、 、锤皆实物也
。若曰在天成象，在地成形，如星陨为石。则雨金石、雨粟麦、雨毛血及诸异物者，亦在地
成形者乎？必太虚中有神物使然也。陈时苏绍雷锤重九斤。宋时沈括于震木之下得雷楔，似
斧而无孔。鬼神之道幽微，诚不可究极。
【气味】无毒。
【主治】大惊失心，恍惚不识人，并石淋，磨汁服，亦煮服。作枕，除魔梦不祥（藏器）。
刮末服，主瘵疾，杀劳虫，下蛊毒，止泄泻。置箱 间，不生蛀虫。诸雷物佩之，安神定志，
治惊邪之疾（时珍。出《雷书》）。
(From *Bencao Shiyi* [Supplement to Materia Medica])
[Names] Lei Xi (Thunder Wedge).
Li Shizhen stated: The old texts wrote it as "Zhen" [Needle] and "Xie" [Dregs], which was incorrect.
[Collection and Explanation] Zang Qi said: This object is sought after where lightning strikes; digging three chi underground will reveal it. Its shape varies; some resemble axes or knives, others resemble files, and some have two holes installed. One account states it originates from Leizhou and the mountainous and marshy areas of Hedong, obtained after a thunderstorm. It mostly resembles an axe in color, with dark green and black mottling, and is hard as jade. Some say it is stone manufactured by humans and offered to the Heavenly Court (Tian Cao), but the facts are unknown.
Li Shizhen stated: According to *Lei Shu* [Book of Thunder]: The Lei Fu [Thunder Axe] resembles an axe and is made of copper or iron. The Lei Zuan [Thunder Drill] resembles a chisel and is made of stone, purple-black in color. The Lei Chui [Thunder Hammer] weighs several jin, and the Lei Zuan is over one chi long; both are like steel, used by the Thunder God to split or strike objects. The Lei Huan [Thunder Ring] resembles a jade ring and was dropped by the Thunder God. The Lei Zhu [Thunder Pearl] was spat out by divine dragons and left behind, emitting light that fills the room at night. Furthermore, *Bowuzhi* [Inquiries into Various Things] records that small stones resembling small axes are often seen in the human world, named Pili Fu [Thunderbolt Axe], also known as Pili Xi [Thunderbolt Wedge]. *Xuanzhongji* [Record of the Mysterious Middle] claims there is a country west of Yumen Pass with a temple on a mountain, where people annually mine drills for the use of the Thunder God. This is absurd talk. Although thunder is the sound generated by the friction and collision of Yin and Yang energies, it is actually governed by divine entities. Therefore, it coincides with the awakening of all things during Jingzhe [Awakening of Insects solar term]; the axes, drills, chisels, and hammers are all physical objects. If one argues that phenomena form in heaven and shapes form on earth, such as meteorites falling as stones, then do metallic stones, millet, wheat, hair, blood, and other strange items falling during rain also form shapes on earth? It must be that divine entities in the Great Void [Tai Xu] cause this. During the Chen dynasty, Su Dao's Lei Chui weighed nine jin. During the Song dynasty, Shen Kuo found a Lei Xi under a tree struck by lightning, resembling an axe but without a hole. The way of ghosts and gods is profound and subtle, truly unfathomable.
[Flavor and Toxicity] Non-toxic.
[Therapeutic Actions] Treats sudden fright causing loss of heart-mind control, mental confusion where one does not recognize people, and Shi Lin [Stone Strangury / Urinary Calculus]. Grind into juice and ingest, or boil and drink. Make into a pillow to eliminate demonic dreams and inauspicious omens (Zang Qi). Scrape into powder and ingest to treat Zhai Ji [Consumption Disease / Tuberculosis], kill Lao Chong [Labor Worms / Parasites], expel Gu Du [Gu Poison], and stop diarrhea. Place between chests or cabinets to prevent insect infestation. Wearing various Lei Wu [Thunder Objects] calms the spirit and stabilizes the will, treating diseases caused by fright and evil influences (Li Shizhen. From *Lei Shu*).