Legolas continued to feed his horse with some grass as he listened to Aragorn's story. So, he only knew Yavanna when she was just a young toddler; a very young child, who probably acted the same as she was now, with her innocence and all. However, he hoped to keep seeing her green eyes, as well as the light within them. With someone as special as her, he will never let it fade; that was a promise he was now vowed to keep.