are the two wives of Murugan, the god of war in Hinduism, especially in Tamil culture. Deivanai is the daughter of Indra, who became his wife through a formal marriage (representing wisdom/action). Valli, a hunter’s daughter, was married out of love (representing love/devotion). This marriage is associated with places such as Thiruparankundram and Vallimalai. 

• Devayanai : After defeating Surapatman, Indra married his daughter Devayanai to Murugan, which is believed to have happened at Thiruparankundram. She represents divine power and wisdom.
• Valli : Valli, who grew up in the Kuravar caste, captivated Lord Murugan with her love and married him. She is the epitome of devotion and love.
• Philosophical Explanation: 
  By marrying Deivanai (knowledge) and Valli (devotion),

  Murugan(God) embodies the philosophy that the soul can attain God through knowledge and love .