The concept of Cosmos and Matter stems from Bultheel and Aguilar’s shared vision of re-establishing harmony between humanity and nature through beauty. As Bultheel explains, “Inhabiting our spaces is more than a utilitarian interaction with matter; it is a sensitive and precious relationship with the Earth and cosmos.” This question—how can we inhabit our interiors differently?—formed the starting point for imagining the apartment as a sensory journey through ten conceptual scenes, each highlighting different facets of sustainable living. Highlights include two salons inspired by the celestial cycles of the sun and moon, a bar celebrating the transformative power of botanics, and a dining room exploring the cultural and ecological dimensions of food. The ten spaces also serve as a dynamic setting for a rich program of meetings, workshops, talks, and even dinners, creating an immersive environment where ideas and experiences converge.

The Salon de la Lune offers a tranquil yet thought-provoking space imbued with feminine energy and the rhythms of nature. Grounding the space are MUSKHANE’s wool felt spherical cushions and circular rugs; handcrafted by local artisans in Nepal, their round forms playfully echo lunar craters. Ceramist Elisa Uberti adds a tactile dimension with stoneware floor lamps featuring merino wool fringes as do the 3D printed stools by Hors Studio which specializes in the creation of biomaterials from waste. Made from Leatherstone© (recycled leather and natural binders) in collaboration with bold design, the stools also serve a practical purpose during meetings and talks. A hand-crafted loudspeaker by Timothée Musset, a furniture maker who uses ancestral woods often sourced from historic buildings under restoration, further enhances the room’s celestial harmony, bringing a spiritual and religious connection to music.

In contrast to Salon de la Lune’s ethereal serenity, Salon du Soleil exudes vitality, celebrating masculine energy, action, and creation courtesy of designer Arnold d’Alger whose gilded murals adorn the room’s walls and ceiling. Titled "Galaxie", these shimmering compositions invite visitors to contemplate humanity’s place in the vast cosmos, blending cosmic awe with intimate connection. Focusing on the life-giving and destructive properties of the sun’s power, the murals also serve to provoke an element of reflection on how we harness and balance its energy in our interiors.

At the heart of the exhibition, La Table des Vivants is a space that delves into the cultural and ecological significance of food. A large organic-shaped table and 19 stools in oil-stained birch wood by Little Anana serves to anchor the room accompanied by tableware made from recycled clay from ceramicist Manon Ledieu, wooden spoons and trays by Léa Laborie, and Lucie Ponard’s glazed stoneware and "earth paintings" fashioned from construction waste. Transcending the conventional boundaries of design exhibitions, this ephemeral dining environment will also host a series of experiential dinners helmed by Shira Bio, a culinary artist focusing on plant-based cuisine and the art of fermentation.

Adding a unique layer of artistry, Bio's painterly installation of edible leathers, made from dehydrated fruits and vegetables, underscores the creative possibilities of food as both sustenance and medium. Together, these elements transform the dining environment into an ephemeral experience, where sustainability and craftsmanship converge to inspire reflection on the deeper connections between food, culture, and ecological mindfulness.

In Bar Botanique, the concept of sustainability converges with sensual delight, from the plant-based perfumes of Eric Roux, the perfumier behind Paysan Parfumeur, to the chocolates of Carrés Sauvages, a French brand that champions certified organic and fair-trade crops. A floral installation made from hand-painted, upcycled paper by French florist Tij celebrates life’s fragility and resilience whilst poignantly challenging the environmental toll of industries such as floristry. Joanna Prunes, meanwhile, honours local flora through textiles created from upcycled fabrics dyed with pigments derived from plants such as chestnut bark, eucalyptus, and grapevine for the tablecloth and napkins she created specifically for Cosmos and Matter.

As the exhibition looks beyond its Parisian debut, plans are already in motion to bring Cosmos and Matter to other ephemeral spaces across Europe. In doing so, it aims to weave a broader narrative of sustainability and interconnectedness, challenging us all to reimagine how we inhabit not only our interiors but our planet. For now, however, it remains a rare gem in the Parisian design landscape—an invitation to slow down, reconnect, and rediscover the profound beauty of living in harmony with both the cosmos and matter.