The fruit is an emblem of Devi or Shakti ( known as Amman in the Southern parts of India). Garlands made of lime are offered to the deity.
The tree is also associated with Lord Shiva. It is the Stalavriksha at the Shiva sthala at Tiruanniyur in Tamil Nadu. Lord Shiva (Vikucharanyeswarar) is believed to have appeared here under a lime tree.
Lime is also believed to ward off evil forces. Cutting them after reciting certain mantras is considered an effective method for driving away the evil spirits.