Dear [Recipient's Name],

I hope this message finds you in good health and high spirits. I am writing to express my profound gratitude for the wonderful gift you sent me. The [description of the gift, e.g., beautifully wrapped box of chocolates] was such a delightful surprise!

Your thoughtful present not only made my day but also brought joy to my heart. It was incredibly kind of you to think of me, and receiving your gift truly made me feel cherished and appreciated. The gesture meant more to me than words can express.

Thank you once again for your generosity and for taking the time to bring happiness into my life. Your kindness is deeply appreciated and will not be forgotten.

With warmest thanks,

[Your Name]