Dimensionen des Seins was a solo exhibition by Marlon Nikolai presented across three rooms at Kulturbunker Köln-Mülheim.

The exhibition explored different dimensions through which reality becomes perceptible and experienceable. Painting and sculpture operated as interfaces between what is already accessible to perception and aspects of existence that remain latent, unknown or not yet consciously grasped.

Rather than defining the unknown, the exhibition approached it as an open field. Changes in material, scale, spatial arrangement and visual language invited shifts in perception as visitors moved through the three consecutive spaces.

Seen within Nikolai’s broader practice, Dimensionen des Seins marks an important stage in his ongoing investigation into partial aspects of the hidden: phenomena, information, structures and possibilities that have not yet become conscious, sensorially accessible or materially manifest for the individual.

The exhibition therefore positioned the artwork not as an illustration of the hidden, but as a material and perceptual field through which selected aspects of it can enter experience.

The exhibition opened on 27 July with a collaborative performance by Marlon Nikolai and composer and pianist Roman Nagel, extending the exhibition beyond the visual field through the interaction of painting, movement and sound.