The riddle

Принцалександр
What dies being hopeless every single day, like bird being shot and falling to the ground,
But yet at bedtime it revives and flies up back to sky, as Phoenix-bird, reborn and in rebound?
Kalaf has answered question, asked by Princess Turandot, as quoted per above,
- Comes back from ashes after dying in the heart the hope of reciprocal love.