Here is my layout

<div id="mainPanel">
   <div id="padding">
       <h:outputText id="text" value="Personal Feed" rendered="#{Profile.renderComment}"/>
   </div>
   <div id="right">
       <h:form>
           <p:commandButton value="Update" actionListener="#{bean.toggleComment}" update="text" />
       </h:form>
   </div>
</div>

When I click the link Update, which suppose to toggle the renderComment boolean on and off, but it does not toggle the display of the text Personal Feed. Now if I put a form around the h:outputText, and instead update the form instead, then it work. Why is that?