Nietzsche, Voluntary Death or Preaching of Death?

Friedrich Nietzsche is a philosopher who speaks repeatedly about death and addresses specifically the "Voluntary death" in his works. It Also can be inferred from some of his sentences that he directly invites  human to choose death .This invitation isn’t equal with denying  life (as Schopenhauer presents), but arises as a result of mixing it with other newfound ideas, such as the "Will to power" or the "Overman". The Overman, as a light of hope that shines on Nietzsche’s regarded humanity is an excellent example for the will to power and acceptance of the "Eternal return" theory in the world. For this purpose, in this article, we should talk about Overman in related with voluntary death, to understand his criticisms of those beliefs that represent the negation of life. According to Nietzsche, "Preachers of death" are those who consider just one dimension (suffering) ;while thinking about death will be valued if it is in perfect harmony with thinking about life. However, at the end, we will see his statements are not sufficient and he failed to draw one obvious and practical way for this harmony .So after him, also, thinking about the meaninglessness of life and suicide as the logical result extends the experience of absurdity.