There are many good memorial poems, including Auden's "Funeral Blues," Frye's "Do Not Stand At My Grave and Weep," Keller's "What We Have Once Enjoyed" and Ecclesiastes 3:1-8 from the King James Bible. These poems offer a variety of perspectives to help individuals express their feelings about death.
"Funeral Blues" focuses on how one person can be more important to someone than the rest of the world. "Do Not Stand At My Grave and Weep" focuses on the immortality of living on in memory. "What We Have Once Enjoyed" focuses on immortality through the dead living on in others, while Ecclesiastes claims everything happens for a particular reason.