Loop specific WordPress Menu and display content. #wordpress

wp-menu-loop.php

<?php

$nav_items = wp_get_nav_menu_items( 'main', array(      // name of the specific menu
    'order'                  => 'ASC',                  // List ASCending or DESCending
    'orderby'                => 'title',                // Order by your usual, menu_order, post_title, etc. Check WP_Query
    'post_type'              => 'nav_menu_item',        // To be honest, I'm not sure why this is an option, leave it be.
    'post_status'            => 'publish',              // If there are private / draft posts in our menu, don't show them
    'output'                 => ARRAY_A,                // Return an Array of Objects
    'output_key'             => 'menu_order',           // Not sure what this does
    'nopaging'               => true,                   // Not sure what this does
    'update_post_term_cache' => false                   // Not sure what this does
) );

$index = 1;

if( ! empty( $nav_items ) ) {
    foreach( $nav_items as $item ) {
		    $thepageid =  $item->object_id;
        $post = get_post($thepageid); // specific post
        $the_content = apply_filters('the_content', $post->post_content);
        if ( !empty($the_content) ) {
          echo '<div id="page-'. $index++ .'">'. $the_content .'</div>';
        }
    }
} ?>