I like this photo of the Dandelion sending off its seeds.
In some ways it is a symbol of the person with Alzheimer's as they slowly loose their abilities, memories, functioning.
But it could also be seen as the world of Alzheimer's which you and I may not fully comprehend as does the person affected by dementia, as the seeds fly away while being surrounded by new, magical experiences thus the beautiful, variously sized, interlocking, transparent, translucent, and opaque circles.
