Peter Hollens' rendition of the classic Irish folk song "Danny Boy" is a hauntingly beautiful tribute to love, loss, and longing. The song tells the story of a lover bidding farewell to their beloved, who must leave and go on a journey. As the singer watches their beloved go, they express their love for them and hope that they will return one day. The lyrics paint a vivid picture of the changing seasons, with the flowers dying and the valley hushed with snow. The singer promises to be there for their beloved when they return, no matter what the weather or circumstance, whether in sunshine or shadow. The song takes on a more poignant tone towards the end, as the singer acknowledges that they may not be alive when their beloved returns. They ask that their beloved remember them by finding their grave and saying a prayer, and promise that they will hear them. Despite the sadness of the situation, the song ends on a hopeful note, as the singer trusts that they will be reunited with their beloved in the afterlife. Overall, "Danny Boy" is a timeless song that speaks to the universal experiences of love, loss, and the hope of reunion. Peter Hollens' heartfelt rendition highlights the beauty and depth of this classic piece.