Person who lives with good thoughts, seems to have an internal beauty and glow that radiates through their being. And Roald Dahl is absolutely right, it doesn't matter what they look like, if a person has an kindness and love they have a beauty that shines through them like sunbeams and always look beautiful. They will attract loving relationships and a life that lights them up from inside out.
Such a great reminder as there are times we all tend to get caught up in the negative web of life. And poems like this tend to remind us and put us back on the path of love.