《太平广记·卷二百七十六·梦一》
路上走了七天七夜。最后这天夜里，惠义梦见了一位须发飘然的老人为他指示道路。
七日七夜行道，梦有一长须翁指示。
It took seven days and seven nights to get there. That night, Huiyi dreamed of an old man with long beard and white hair showing him the way.