While there's no denying the popularity of Starry Night, it's also interesting to note that there is very little known about Vincent's own feelings toward his work. This is mainly due to the fact that he only mentions it in his letters to Theo twice (Letters 595 and 607), and then only in passing. In his correspondence with his brother, Vincent would often discuss specific works in great detail, but not so in the case of Starry Night. Why? It's difficult to say.

Starry Night was painted while Vincent was in the asylum at Saint-Rémy and his behaviour was very erratic at the time, due to the severity of his attacks. Unlike most of Van Gogh's works, Starry Night was painted from memory and not outdoors as was Vincent's preference. This may, in part, explain why the emotional impact of the work is so much more powerful than many of Van Gogh's other works from the same period.

Some people have made stylistic comparisons to Vincent's other well known and equally turbulent work Wheatfield with Crows. Does the tumultuous style of these works reflect a tortured mind? Or is there something more we can read within the whorls Vincent's raging night sky? This is what makes Starry Night not only Vincent's most famous work, but also one of its most frequently interpreted in terms of its meaning and importance.

Some people have speculated about the eleven stars in the painting. While it's true that Vincent didn't have the same religious fervour in 1889, when he painted the work, as he did in his earlier years, there is a possibility that the story of Joseph in the Old Testament may have had an influence on the composition of the work.

'Look, I have had another dream' he said, 'I thought I saw the sun, the moon and eleven stars, bowing to me.'

• The interesting issue of Starry Night and its astronomical significance is discussed in detail on an Online Forum page.

• Greg Saucier discusses the idea of a yin/yang symbol within Starry Night.