Submitted by Mery Crystal Ra

Client: Maetaguse Parish

Location: Maetaguse, Estonia

Completion date: 2020

Project Team


Mery Crystal Ra

Crystal Energy Ltd


Maetaguse Parish

Maetaguse Parish


TETRA building light-glass-oil shale sculpture visions about an underground mine, using digitally printed glass walls, atrium glass panels with digitally printed abstract motifs and with projected video solutions, LED lines-DMX controlled. Facade windows with digitally printed abstract motifs and from the background-projected videos.


I tried to create a corresponding space that communicates and leaves a positive expression to a visitor, and wanted to create a “synergy of place.“ How to transform the sense of place in this mining region. Intuitive way-finding within the structure. Also I re-applied the symbols of Finno-Ugric and local heritage, adding underground surface symbols and messages: light, energy, and power.The building is in the main mining area. It is under the influence of energy production area narratives. So I decided to use the “energy” narrative and the thoughts, vibrations about it, the visual ideas about the energies from past, present and the future.


One of the challenges was to create a glass underground oil shale sculpture with LED light lines and from the bottom a projected video animation as a part of the glass-light sculpture. The whole aesthetics is a clear response to visual problem solving: Constantly changing concentrated energy-synergy signs, signals and messages from the universe and mirrored/executed by humans via transforming interior/exterior light-glass-video solutions.Videos, light solutions on tunnel oil shale mine walls. Verbal part of the creative process in collaboration with the local politicians. So I collected knowledge about oil shale fabrication process, feelings of local people, memories,sounds – converted them inside innovative art solutions in the TETRA building.
The preparation period included different tests with lights, materials, videos. My underground tunnel tests with light and glass. Communication tests via serendipity and changing substances. Implicit interactions in underground surfaces. Testing process via videos on mining tunnel walls.

Additional Information

It is an active reshaping process of the space via light, digital printings, glass and videos to get an integral surface for new and surreal unexpected action and positive transformation. New vibrations, new gates, new energies, new synergies between room components and between people. LEDs controlled by computer allow the manipulation of the play of light with the glass in the state of renewal, unexpected transformations start via light and glass mesmerizing meeting point, radical radiance as an ecstasy and an ultimate statement can happen. All visual art is the same essence, as the radical radiance from nothing to something.