Native speakers of English, could you help me with my English?

I am translating a paragraph about architecture and since I'm not a native speaker of English I find some phrases difficult to understand. Does the word ''building'' in this paragraph refer to a structure (a building) or to a process of building (making structures)? (the paragraph speaks about the famous thermal baths that Peter Zumthor designed at the village of Vals)


The phenomenological intentions behind this work were openly acknowledged by Zumthor in 1997:

Mountain, stone, water, building in stone, building with stone, building into the mountain, building out of the mountain – our attempt to give this chain of words an architectural interpretation, to translate into architecture its meanings and sensuousness, guided our design for the building and step by step gave it form… Right from the start, there was a feeling for the mystical nature of a world of stone inside the mountain, for darkness and light, for the reflection of light upon water, for the diffusion of light through steam-filled air, for the different sounds that water makes in stone surroundings, for warm stone and naked skin, for the ritual of bathing.