You can use Travel Statues to:

• Heal your entire party for free.
  

  • In order to heal, you need to get close to Travel Statue and tap "Interact" button. 

• Useful for restoring health between battles or before big fights.

• Travel statues also unlocks the Fast travel options in the game - in order to fast travel you need to visit the travel statues first. 

For more information about Fast Travel, please check the article below:

• How do I fast travel?