ધર્મના મૂળ ઉડાં છે.

dharmanā mūḷa uḍāṁ chē.

Literally: The roots of religion are deep.
What it means: Fundamental beliefs and traditions are difficult to uproot once they are established.

Also said as

ગુજરાતી કહેવતસંગ્રહ (Gujarati Kahevat Sangrah) (1923) · read from the scan by machine — the Gujarati itself is unchecked · English is machine-made and nobody has checked it yet

Heard it differently, or know we've got the sense wrong? Tell us — that is exactly the kind of correction this needs.