Literally "It’s good that you were born," commonly used as "Happy Birthday".

(Thank you very much, I hope we share many more years together.)

The phrase "İyi ki doğdun, iyi ki varsın, Emil" is a Turkish birthday greeting that translates to

If you are Emil and received this message, you can reply with: (Thank you!)

The recipient's name. Note that the Turkish name is often spelled "Emel," but personalized versions for "Emil" exist in song form. Proper Spelling & Usage