The discussion centers around the emotional impact of various songs, particularly focusing on "The Knowing" by The Weeknd and "A-Team" by Ed Sheeran, both of which evoke deep sadness through their lyrics and melodies. Participants express how these songs resonate with personal experiences of loss and heartache. The conversation expands to include a range of other sad songs and their themes, such as "Where Have All the Flowers Gone," "Vincent," and "The Wreck of the Edmund Fitzgerald," highlighting the universal nature of sorrow in music. Many contributors share personal anecdotes related to the songs, emphasizing their emotional weight and the memories they invoke. The thread reflects a collective appreciation for music's ability to articulate feelings of sadness and nostalgia, with several users sharing links to songs that have profoundly affected them.