I would hope she means the beauty of internal values. A decent and good character is one of the most beautiful things in the world. Helen Keller would 'see' with the heart that which is beautiful in people.
Kindness, humility,, justice. endurance,self-control, integrity,gratefulness, love/charity among other qualities
I see you are not the deep kind of person.
Maybe you shouldn't take anything so literal and plain.
A lot of things are not what they seem to be or as what you see them.
Anyways, the people with hearts to "see" understand.
There's a certain feeling you get where you know....that's what I get with heart. It's hard to explain. It's a drive, desire, confidence, etc that just pushes and motivates you everyday.
That's what I think she means. You don't necessarily have to rely on sight. Sometimes the phyiscal senses can be mundane. When emotion drives you when the senses are "over worked" well, you'll get the gist of the quote
Could she see a sunset or a babies smile? Those things are beautiful are they not? There are beautiful things that can indeed be seen. Beautiful things that can be held. You can hold a husband, wife parents, children. I like flowers and they are beautiful. As a sightless person she missed out on seeing, doesn’t mean she was ever so wise that ones sight is totally meaningless....
If you rely on eyes only, you are poor.
experiencing by feeling is stronger than what you can see on the surface.
that's why people seem to always close their eyes when truly wanting to enjoy something.
closing your eyes to be able to experience something more intense is a common thing to do which can't be experienced with your eyes open.
If you can't understand or relate to this then I feel sorry for you because it seems like you are missing on warmness.
Very sad if a woman misses something that is actually one of the most important things that define her.