In Lost in Thought, the viewer sees a woman seated in a tranquil setting. She appears deep in contemplation, surrounded by soft colors and gentle light. The background features lush greenery, which adds to the serene atmosphere of the painting.

The use of warm tones enhances the feeling of calm and introspection. The painting is executed in oil on canvas, a medium that allows for rich texture and depth. The artist employs a realistic style, capturing the details of the woman's clothing and the surrounding environment. The brushwork is smooth, contributing to the overall softness of the scene.

This attention to detail is characteristic of Realism, which seeks to depict everyday life authentically. Daniel Ridgway Knight was known for his depictions of women in idyllic settings, often reflecting themes of solitude and contemplation. Lost in Thought exemplifies his focus on the inner life of his subjects. An interesting fact about this work is that it showcases Knight's ability to blend natural beauty with human emotion, making it a notable piece in his oeuvre.