The song "I Don't Believe in Ghosts" by Sebastien Grainger seems to be about a person feeling disconnected from their spirituality and questioning their faith. The lyrics talk about feeling abandoned by a higher power and no longer believing in the existence of ghosts or a deity watching over them. The song conveys a sense of disillusionment and disbelief in the idea of divine intervention, as well as a sense of seeking truth and understanding without relying on traditional religious beliefs. The singer seems to be expressing a desire to find their own path and meaning, independent from religious dogma. Overall, the song appears to explore themes of doubt, introspection, and the search for personal truth.