You and I might have the same idea, or experience a certain moment together, or whatever, yet I might go and draw a picture while you manifest it in poetry. No one takes in events exactly the same, and no one produces anything from them in the same way either. And by having a similar idea in many different venues, it gives everyone else an opportunity to come across it wherever they are happiest. If Thom Yorke writes a song about something that was in another person's book, it's more likely there will be more people who will come across that idea. Now, not only do people who like that particular book know about it, but Radiohead fans will hear about it too.
And that is the reason we all have different talets to share with each other. Spreading the memes, and the love, as much as possible.
This post is the product of a very delightful conversation with Ashliana.