Hi! i’m reading this story too haha but what is your question your trying to answer ?
        
             
        
        
        
It means he was happy and felt good in his heart. You know when you see or do something like buy your mom a gift she loves and your heart seems to feel like it is filled with happiness? That's the feeling that I believe William Wordsworth is trying to express. 
Hope this helped. Have a great day!
        
                    
             
        
        
        
Any talent at all or do you want a specific talent to be written about?