હૈયું હોય હાથ તો જઈએ દારીની સાથ.

haiyuṁ hōya hātha tō jaīē dārīnī sātha.

Literally: If the heart is in the hand, then we go with the enemy.
What it means: If one has courage and determination, they can overcome even the greatest obstacles.

Also said as

ગુજરાતી કહેવતસંગ્રહ (Gujarati Kahevat Sangrah) (1923) ગુજરાતી કહેવતસંગ્રહ (Gujarati Kahevat Sangrah) (1921) · 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.