"Keep your face to the sunshine and you cannot see a shadow."

-Helen Keller.

You could be blinded by sunlight. Your face might feel a bit warm. You’ll see a lot of yellow as you bask in the light. Most people will turn their cheek as they’ll want to feel the warmth. You might appear luminous to others and inspire them. Help will come to you. People want to see you progress. Probably because you’re standing in their way, blocking something. But you can’t be there forever. Unless you live in a greenhouse on a planet where days last for ages. Or you might not be able to see anything at all. You could be permanently blinded. It’s a good job that clouds and rainy days exist to block your way. It’s not great advice, especially as it’s coming from someone who’s already blind. It could be a conspiracy so that she can gain some ground. But I think the author is trying to persuade everyone to think positively.