The further they walked, the brighter the seven-colored radiance. At one point in their journey, it was so bright that they couldn't even see the leaves beneath them.
Fortunately, Wei Xiao Bei wasn't using his eyes to examine his surroundings. Otherwise, there might even be a possibility for them to fall through the gaps between the leaves.
After the most difficult portion of the journey, it became much easier. The radiances were still as bright as ever, but at least they could now see with their naked eye. Moreover, the brightness of the light was slowly decreasing as they walked forward.
When he stood at the edge of the World Tree's canopy, he finally saw the full appearance of the Bifrost.
It wasn't exactly right to say that the Bifrost had collapsed, but it wasn't right to say that it hadn't either.
At this moment, the Bifrost was a broken bridge.