Each year on this date, I post this link. When I first heard it, 21 years ago, I wept in a way I’d never wept before. The audio is 3 1/2 minutes out of your day. It’s worth it, and as it has each year for 21 years, it again moved me to tears.
About a month after 9/11 Rabbi Irwin Kula (an 8th generation Rabbi, with a very modern look at life) took some of the transcripts of phone calls and voicemail made that fateful morning, and during his service, chanted them as if they were the most sacred prayer ever heard.