In this sermon, the speaker describes a vision of a dim light illuminating the grass and gradually getting brighter. As the light intensifies, the speaker can see deeper into the grass, perceiving its three-dimensional structure. The light then starts to illuminate other areas, including a tree, revealing its depth and composition. The speaker also sees faces of people who have been present but previously unseen, and they express joy and anticipation as they witness the unfolding of this light.