Musar zu Tehillim 69:29

Concerning this matter a call goes out every day proclaiming that one must not cause his soul to be banished. Thus the Zohar relates (1:62a, Tosefta): A voice from a voice descends from On High, shattering mountains, proclaiming: Who are they who see but do not see? With stopped up ears and closed eyes they neither see nor hear nor understand! These are the ones who cause the holy soul to be banished from its place so that it is not inscribed in the Book of the Living. Thus is it written, “Let them be erased from the Book of the Living and let them not be inscribed with the righteous” (Tehillim 69:29). Woe to them, for when they leave this world they are delivered into the hands of the angel Dumah to be burned with fire!