而今現存最早嘅韻圖《韻鏡》的作者尚未考明，所以對韻圖嘅由來只能根據歷史背景推斷。一般認為，韻圖嘅起源同佛教有關，有個比較合理嘅推測咁樣嘅：
The author of the earliest surviving rhyme diagram "Rhyme Mirror" has not yet been verified, so the origin of the rhyme diagram can only be inferred according to the historical background. It is generally believed that the origin of the rhyme diagram is related to Buddhism, and there is a more reasonable speculation as follows: