How To Write A Letter To A Senior Person . Your letter will be a prized possession for the person who receives it. Perhaps this is a way for you to process the healing that your heart needs as well. Pin on Letters from www.pinterest.com Dear high school senior, i literally can't believe time has flown by so fast. Please type your letter or email us to send us your handwritten letter. It seems like yesterday your backpack was twice your size and your only worry was what game you were going to play during recess.