One of Ajahn Chah's disciples had a knee problem that could only be corrected by surgery. Although the doctors had assured him his knee would be well in a couple of weeks, months went by and it still hadn't healed properly.
When he saw Ajahn Chah again, he complained saying, "They said it wouldn't take this long. It shouldn't be this way." Ajahn Chah laughed and said, "If it shouldn't be this way, it wouldn't be this way."
~ Ajahn Chah