Daenerys could not imagine the future. As far as this world had come with it's technology, she couldn't imagine it. Erik had hope, so she did too.
When he stated he had hope, it comforted Dany. He seemed a little more animated, not the stupor he called life.
"Where there is hope, there is life." At least that's what she'd thought. It was her own hope that kept her alive in Westeros, that and a belief in herself.
"I'm glad to see you smiling and the sparkle in your eyes that is a good sign I think." Rubbing his back with her hand, she leaned in to kiss his cheek.
"It will be what it is suppose to be, where ever you are in your life's journey, is exactly where you should be," she said as she comforted him.