Reaching out his will towards the Starquake's question is likely to both reveal a significant answer to him - and precipitate his transformation into a Harbinger. Your call if he cuts contact in time & remains unsure, or commits to pursuing the answer.

The active wills are both focused on dozens of things at once, staying vigilant & making minimal changes - active watching & balancing, essentially, like someone birdwatching while standing on a high wire. The minds are vast enough to feel more like places than people.