7sage doesn't have any explanations for that passage which is freaking ridiculous. I'm in a similar boat with C.4.26. If you're curious about 25, I think this post does a pretty could job explaining it.

7sage is a great service, but is a supplement. It pairs great with the Loophole by Ellen Cassidy. People have other books they swear by, but that's my go to. The point is, one of these books will give you the skills necessary to attack LR generally, and then 7sage can help clean up misunderstandings. This advice would have saved me hundreds of dollars and nine months of no progress, so please heed it.