Keil, an isolated and travelled spirit, expressed himself with melancholic sentimentalism which relates him to late romanticism. This scene, scarcely approached by Portuguese painters at the time, presents the open browns with a luminosity composed of dark tones that fall onto the sand and sea. A figure contemplates this scenery, representing the meditative mood of the artist like a reflected image. The play of light and shadow, understood in soft tones, expresses a sensation of a retreat to Vale de Colares, where the artist lived, connecting it to this sentimentalism which directs us towards a new manner of observing nature. Keil extracts his potential from the spirituality inherent to the interpretation of light and darkness, with a religious undertone, from the interiorised relation of isolation and cosmopolitanism. Nature as a sanctuary creates a symbolic refinement, a rare theme in Portuguese painting.