A crooked tree will have a crooked shadow.

The tree and its shadow illustrate how an underlying defect can become visible in its effects. What is produced may reflect the condition of what produced it.

The proverb directs attention beyond an unsatisfactory result to the person, practice, or foundation behind it. Changing the outward appearance alone may leave the underlying problem intact.

Use this proverb when a disappointing outcome appears to reflect a deeper problem, such as a faulty plan leading to faulty work. It is especially apt when someone focuses on the result while overlooking its cause.