\documentclass{article}
\title{Testing Sections}
\date{Today!}
\begin{document}
\maketitle
\section{One}\label{sec:one}
Section One. As we will see in \S\ref{fig_three}.
\section{Two}\label{sec:two}
As seen in \S\ref{sec:one}; Section Two.
\section{Three}\label{sec:three}
Previously, in \S\ref{sec:two}.
\begin{figure}
Hi!
\caption{A Figure\label{fig_three}}
\end{figure}
\end{document}