Resurrection Letters, Vol. 1 by Andrew Peterson is a celebratory Christian album focusing on the resurrection of Jesus Christ, exploring its meaning and impact with songs like "Is He Worthy" and "His Heart Beats," bridging the gap from the darkness of the cross (addressed in the prequel Prologue) to the triumph of Easter Sunday, aiming to inspire awe and gratitude for God's victory over death. It's a folk/roots rock collection blending historical truth with deep emotion, featuring diverse sounds from Celtic to gospel, and is considered a new Easter tradition.