The memoir class (a superset of book, report and article) has a variety of methods for producing what I called anonymous divisions because they caused unnumbered and untitled breaks in the text.
% anondivprob.tex SE 631043
\documentclass{memoir}
\usepackage{pifont}
\newcommand{\sometext}{Just some random text to help fill things up
without necessarily making any sense. }
\newcommand{\twice}{\sometext \sometext}
\renewcommand{\pfbreakdisplay}{{}\ {}\quad{}} % triangle of s
\begin{document}
\twice
\fancybreak{\pfbreakdisplay}
\twice
\fancybreak{{}\{ * }\{}}
\twice And a bit more to make the last line longer.
\fancybreak{\ensuremath{\clubsuit\quad\diamondsuit\quad\clubsuit}}
\twice
\fancybreak{\ding{167}\quad\ding{167}\quad\ding{167}} % \ding from pifont package
\twice
\fancybreak{\pfbreakdisplay}
\twice
\end{document}

For more information read the manual (texdoc memoir) section 6.7 Fancy Anonymous Breaks. It's only a couple of pages but explains much that it is not possible in this answer. For example, that you can have a break just of a missing line or two in the middle of a page but if the break is at a page break then you can a textual/graphic indication that there is really an intended anonymous break there.
sectionbreakpackage provides asterism. – Cicada Jan 22 '22 at 09:17