Before he was a teacher, the Buddha tried the path of extreme effort (苦行). For years he ate almost nothing and pushed his body to the edge. He grew so thin and weak that he could barely think — yet he was no closer to peace.
One day he heard a music teacher on a boat speaking to a student about a lute (一種弦琴). “If the string is too tight, it will snap. If the string is too loose, it will not play. Tune it just right, and it makes beautiful music.”
The Buddha understood at once. A life of harsh extremes is like a broken string; a lazy life is like a string too loose to sing. The wisest way is the Middle Path — not too tight, not too loose. From that balance grows Right Action: choosing what is wholesome and avoiding what causes harm. The best choice is rarely the most extreme one; it is the most balanced one.