As a young girl, princess Tamina was trained to become a guardian as all of her ancestors did before her. She was trained to become a capable fighter but most of all, she was trained to protect the powerful relic, the Dagger of Time. It was her duty and that of Alamut's royal family to protect this and the Sandglass of the Gods. She was taught that it was her sacred calling, her destiny to protect the dagger no matter the consequences, even if it required her death. Tamina is a Hindu, as the Gods of Alamut are Hindu deities and the mythology and idols referenced and seen throughout the film are of Indian origin. Invasion of Alamut
When the Persians attacked her holy city of Alamut, princess Tamina went to the high temple to pray and retrieve the Dagger of Time. As the Persian invaded the city, she entrusted the Dagger to Asoka, one of her soldiers to make sure it would be kept safe. However the Dagger fell into the hands of Prince Dastan who took it thinking it is an ordinary knife.

𝐍𝐀𝐙𝐀𝐍𝐈𝐍  🎨💻🖼

                                                  
  𝗗𝗶𝗴𝗶𝘁𝗮𝗹 𝗔𝗿𝘁𝗶𝘀𝘁 𝗔𝗻𝗱 𝗔𝗜 𝗗𝗲𝘀𝗶𝗴𝗻𝗲𝗿

What is going on after?
What will do Dastan with the knife?