I had a mini-theory that we would see a physical effect of what Min had initially described when she Viewed the Wonder Team - alone and independent, the light represented by Rand was weak and easily extinguished and those of his friends were flickering, growing still dimmer. But together their lights join and start fighting back the darkness and actually pushing it back. Together, the impossible starts to approach possibility.

As Morat said, as he and his friends spread belief and order, the Pattern starts resisting the Dark Ones' attempt to tear it apart.