Crawl
You pick a direction and very carefully make your way through the Chamber, feeling in front of you for beams of the Pattern. The beams feel warm and very slightly tacky, like lacquered wood.
Crawl; reach; touch; shift; crawl. Bump. Adjust. Crawl.
After what seems like forty minutes of slow progress, you find yourself touching not a beam of the Pattern, but something much softer.