On the other hand, the fantastic shapes of the stalactites and stalagmites and their impression of crushing weight offers an improbable collection of geologic formations that defies gravity in some instances. The substance of these formations is not what it appears to be. The entire roof of the grotto appears weirdly shaped and unstable. The viewer obtains a very clear impression and understanding of the nature of the figures bathed in spiritual light in the foreground. However, in the background, the form and substance of the grotto is unclear and confused.
Nature provides the only link between the foreground and the background.
John the Baptist and Jesus are surrounded by beautifully detailed flora. The lovely greenery spreads throughout the grotto and up to the sky. The beauty of nature transcends the evil of the world. Given time, God would allow the flora would cover and hide the menace of the rocks. Nature represents a bridge between God and fallen man.