I wasn't sure if it was his mother that the song was about as I really don't know much about the artist, but I can see if it was his grandfather, assuming he lost him some time ago. The reference to autumn leaves can be interpreted as memories, and how they fade over time. The part about him sitting at his chair with all these memories floating through his mind. And although his own memories start to fade his fathers memories of the person are still very strong. Amazing portrayal of loss from such a young artist.
I wasn't sure if it was his mother that the song was about as I really don't know much about the artist, but I can see if it was his grandfather, assuming he lost him some time ago. The reference to autumn leaves can be interpreted as memories, and how they fade over time. The part about him sitting at his chair with all these memories floating through his mind. And although his own memories start to fade his fathers memories of the person are still very strong. Amazing portrayal of loss from such a young artist.