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!
Gerasim<span> is particular about his dental hygiene. </span>Gerasim<span> belongs to the bourgeoisie. </span>Gerasim<span>belongs to the working class. </span>Gerasim<span> is able to stay cheerful even in difficult times.
</span>