Painted in Paris, Château du cheval mystérieux belongs to Biegas’s celebrated Mystique de l’infini cycle (1923–1929), a series of Symbolist works exploring dream, spirituality, and the subconscious. The composition presents a fantastical citadel crowned by a spectral Pegasus, its metallic form glowing against a deep nocturnal sky. Flanked by towering cypress trees—traditional symbols of mourning and eternal remembrance—the scene evokes both myth and metaphysical reflection.

At the lower edge, a small nude female figure introduces a human presence within this vast, uncanny landscape. Her scale and luminous delicacy contrast with the monumental architecture, heightening a sense of mystery and ambiguity. She may be read as a dreamer, witness, or symbolic figure, reflecting the Symbolist fascination with allegory and the enigmatic nature of femininity.

Biegas orchestrates the painting like a theatrical vision: jewel-like tones of turquoise, crimson, and gold animate the citadel, while subtle green light suggests dawn or a passage between worlds. Influenced by Symbolist artists such as Arnold Böcklin and Odilon Redon, Biegas developed a distinctive style that merges mythological imagery with architectural fantasy and emotional intensity.

Critics of his time described these works as meditative and poetic, aligning with his belief in art as a synthesis of music, poetry, and image. Here, he creates a suspended realm—both serene and unsettling—where stillness and latent motion coexist.

Château du cheval mystérieux exemplifies Biegas’s singular contribution to early twentieth-century Symbolism, uniting Romantic imagination with modern abstraction. The painting invites viewers into a contemplative, dreamlike space shaped by light, myth, and the infinite.

Authentication confirmed by the Biegas Committee Condition report.