<image>The problem:

As shown in the figure, the quadrilateral pyramid \(\textit{P}-\textit{ABCD}\) has a base that is a right-angled trapezoid, with \(\textit{AB} \parallel \textit{CD}\), \(\textit{BA} \perp \textit{AD}\), and \(\textit{CD} = 2\textit{AB}\). Additionally, \(\textit{PA} \perp\) the base \(\textit{ABCD}\). Let \(\textit{E}\) be the midpoint of \(\textit{PC}\). Determine the spatial relationship between \(\textit{BE}\) and the plane \(\textit{PAD}\).

\textit{}