The letter format was usually written at the end of the letter to let the reader feel warmth and blessings in the process of reading the letter. At the end of the letter, you usually add a congratulatory phrase with a parenthesis or an exclamation mark, such as: ``` Dear (recipient's name): I wish you all the best and a happy life! (Name of writer) ``` maybe ``` Dear (recipient's name): I hope you can feel my sincere blessings and concern. (Name of writer) ``` When you add blessings, you should choose the appropriate language and method according to the specific situation to let the reader feel your sincerity and concern.