Square card with white and yellow text against blue background. Card reads, "Mitzvah4Pittsburgh. Some spread darkness. We spread light. Choose a good deed. Choose a Mitzvah. Add light to the world," followed by four options and a place for respondents to list their name and email address. Some names and email addresses have been redacted for privacy.

Square card with white and yellow text against blue background. Card reads, "Mitzvah4Pittsburgh. Some spread darkness. We spread light. Choose a good deed. Choose a Mitzvah. Add light to the world," followed by four options and a place for respondents to list their name and email address. Some names and email addresses have been redacted for privacy.

Envelope and floral tag addressed to Jerry Rabinowitz. The envelope reads: "Jerry" and is illustrated with a heart and tree with barren branches. The tag features an illustration of a sheep with wildflowers growing out of its head. The tag contains a personal message to Jerry and features an illustration of a grass field with tree, large heart, and flowers in the lower center.

Square card with white and yellow text against blue background. Card reads, "Mitzvah4Pittsburgh. Some spread darkness. We spread light. Choose a good deed. Choose a Mitzvah. Add light to the world," followed by four options and a place for respondents to list their name and email address. Some names and email addresses have been redacted for privacy.

Square card with white and yellow text against blue background. Card reads, "Mitzvah4Pittsburgh. Some spread darkness. We spread light. Choose a good deed. Choose a Mitzvah. Add light to the world," followed by four options and a place for respondents to list their name and email address. Some names and email addresses have been redacted for privacy.

Square card with white and yellow text against blue background. Card reads, "Mitzvah4Pittsburgh. Some spread darkness. We spread light. Choose a good deed. Choose a Mitzvah. Add light to the world," followed by four options and a place for respondents to list their name and email address. Some names and email addresses have been redacted for privacy.

Hand written and illustrated poem dedicated to the eleven leaves which feel from the Tree of Life, a euphemism for the eleven victims of the October 27 attack. Eleven illustrations of different kinds of leaves appear around the poem.

Handwritten card from a student at Goddard Middle School in Littleton, Co. The front cover reads: "F.e.a.r. has two meanings- Forget everything and run OR Face everything and rise. The choice is yours." A star of David and cartoonish illustration of a smiling boy wearing a red baseball cap appear below; a shining sun in the upper right corner. The inside reads: "Dear Rabbi Jeffrey Myers, We are sorry for your loss and we hope you are recovering well. -Aiden G. Littleton, Colorado." Spelling errors corrected for clarity.

Note from a member of The Church at Severn Run in Severn, Maryland. The note is enclosed in an envelope with church letterhead, reading: "The Church at Severn Run: Love Well, Live Jesus, Believe Big!" The note inside contains a prayer and wishes for love and faith in God. The church's contact information is included on the back of the envelope.

Card from a student at West Allegheny Middle School in Imperial, Pa. The front features a hand-colored illustration of the words: "Be Strong" and other floral and geometric motifs. The back contains a handwritten note, as well as a sticker with the stock signature: "From your friends at West Allegheny Middle School."

Oral history with Gemma Del Duca recorded as part of the Meanings of October 27th oral history project.

Letter from a member of the Point Loma Community Presbyterian Church in San Diego, California. The letter reads: "Friends, Words cannot express our sorrow the losses you all have endured. That your community of faith, love, peace was assaulted with such hatred and brokenness-our hearts ache for you all. We stand with you in faith and love in the face of such destruction. We stand with you in prayers for comfort and healing in the midst of your pain. We stand with you as a force for love in a hurting world. The [last name redacted] Family, Lauren, Joel, Kieran, Micah."

Print with various birds resting on the branches of a flowering tree folded in half to create an improvised card. The inside contains a handwritten sympathy note written in blue ink from a member of the autism community in Monroeville, Pa.

Square card with white and yellow text against blue background. Card reads, "Mitzvah4Pittsburgh. Some spread darkness. We spread light. Choose a good deed. Choose a Mitzvah. Add light to the world," followed by four options and a place for respondents to list their name and email address. Some names and email addresses have been redacted for privacy.

Handwritten note written in black, pink, and red marker on the back of page from a Staples calendar. The note contains quotes from Ecclesiastes and the South African Jewish philosopher, David Benatar. The quotes articulate the philosophical perspective, championed by Benatar, that procreation is not ethical.