We all develop memories through our life time and sometimes it's nice to take a snap shot of these to share with other people or keep for yourself. They don't have to be the biggest or most expensive item to make someone smile and remember
You do not have a link list with a handle set to memories, or you do and it's empty. Go ahead and create a link list called Memories on your Navigation page and populate that link list with links that point to collections, to see collections listed here. Make sure the link list also has a handle set to memories.