Interesting. I think about recursion both in terms of linguistic/symbolic rules that are associated with it, but I also associate it visually with call tree diagrams, nested structures and loops. I can't think about dogs, flowers and sunsets just in terms of language though, there are always images, smells, sounds, movements etc. associated with it.

Perhaps take an empty piece of paper and imagine drawing a big letter on it. I've read before that non-visual thinkers can experience visual thinking that way.