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In ancient times, there was a man who was born blind. He once asked people what the sun was like.
Someone told him the sun resembled a brass plate. When the blind man returned home, he found a brass plate, noticed it could be struck to make a sound, and mistakenly believed that this sound was the sun.
Later, he was told that the sun does not make a sound but gives off heat like a candle. So, he then mistook a candle for the sun.
One day, he discovered that a 'yue' (an ancient wind instrument) looked very similar to a candle, and he also considered it to be the sun.

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Open the tool →盲人扪烛 (máng rén mén zhú) is a Chinese idiom (chengyu) meaning “to make arbitrary judgments or draw conclusions based on incomplete information, a one-sided view, or limited experience”.
盲人扪烛 is pronounced máng rén mén zhú in Mandarin Chinese.
Literally, 盲人扪烛 means “Blind person touching a candle”. It is used to mean “to make arbitrary judgments or draw conclusions based on incomplete information, a one-sided view, or limited experience”.
盲人扪烛 comes from a classical Chinese story dating back to the modern era. The full story is on this page.
比喻只凭片面了解或局部经验就对事物妄加判断。同“盲翁扪籥”。