《撼龍(long)經》是(shi)唐代(dai)(dai)風(feng)(feng)水(shui)大師楊筠(yun)松(song)的(de)代(dai)(dai)表作之(zhi)一(yi),是(shi)龍(long)脈(mo)風(feng)(feng)水(shui)的(de)最權·威圣典,被(bei)譽為“中(zhong)國古代(dai)(dai)測繪學之(zhi)·最”,是(shi)了(le)解與(yu)運用龍(long)脈(mo)風(feng)(feng)水(shui)、快速振興(xing)家業的(de)最佳典籍。
廣明中遇(yu)黃巢犯(fan)闕,竊禁中玉函秘術以逃,后往來于虔州。無(wu)稽之談,蓋(gai)不(bu)(bu)是信也。然其(qi)書乃為世所盛(sheng)傳(chuan)。《撼龍(long)(long)(long)經》專言山龍(long)(long)(long)脈絡(luo)形(xing)勢,分貪(tan)狼、巨(ju)門、祿存、文(wen)曲、廉貞、武曲、破軍(jun)、左輔、右弼九星,各為之說(shuo)。《疑龍(long)(long)(long)經》上篇(pian)言干中尋枝(zhi),以關局水口(kou)為主。中篇(pian)論(lun)(lun)(lun)尋龍(long)(long)(long)到(dao)頭,看面背朝迎之法(fa)。下(xia)篇(pian)論(lun)(lun)(lun)結(jie)穴形(xing)勢,附以疑龍(long)(long)(long)十問,以闡明其(qi)義。《葬法(fa)》則專論(lun)(lun)(lun)點穴。有(you)(you)(you)(you)倚(yi)蓋(gai)撞黏諸說(shuo),倒杖分十二條,即上說(shuo)而(er)引伸之。附二十四砂葬法(fa),亦(yi)臨穴時(shi)分寸毫厘之辨。案陳振孫(sun)《書錄解題(ti)(ti)》有(you)(you)(you)(you)《疑龍(long)(long)(long)經》一卷,《辨龍(long)(long)(long)經》一卷,云吳炎錄以見遺,皆無(wu)名氏(shi),是此書在宋并不(bu)(bu)題(ti)(ti)筠松所作(zuo),今本(ben)不(bu)(bu)知何據而(er)云然。其(qi)《撼龍(long)(long)(long)》之即《辨龍(long)(long)(long)》與(yu)(yu)否(fou),亦(yi)無(wu)可(ke)考證。然相傳(chuan)已(yi)久,所論(lun)(lun)(lun)山川之性情形(xing)勢,頗能得其(qi)要領,流傳(chuan)不(bu)(bu)廢。亦(yi)有(you)(you)(you)(you)以也。舊(jiu)本(ben)有(you)(you)(you)(you)李國木注并所附各圖,庸(yong)陋淺俗,了無(wu)可(ke)取。今并加刊削,不(bu)(bu)使(shi)與(yu)(yu)本(ben)文(wen)相溷焉。
明(ming)李(li)國(guo)木撰《地理大全一集(ji)》·三十卷、《地理大全二(er)集(ji)》·二(er)十五卷(通行本),是書一集(ji)之七卷至十卷為楊筠松(song)《撼龍(long)經(jing)》、《疑龍(long)經(jing)》、《葬(zang)法(fa)倒杖》。二(er)集(ji)二(er)卷為楊筠松(song)《青囊奧語(yu)》。