John Lennon once wrote a fascinating letter to a then-obscure folk artist. It wasn't delivered for decades.
Photo credit: Unidentified photographer for Michiganensian via Wikimedia Commons, public domain, cropped, with Canva text (left) / Bryan Ledgard via Wikimedia Commons, Creative Commons Attribution 2.0 Generic, cropped (right)
This response to someone grieving a friend might be the best internet comment ever
“I wish I could say you get used to people dying. I never did. I don't want to.”