Photo: personal example of the bright spring light
The following description of Provence in English I found in the leaflet the Holland Herald on board of a KLM flight from Marseille to Amsterdam. He describes us very well for the attractiveness of Provence. I can't remember the author name so the correct referencing is missing.
I often wondered what is about Provence in the south of France that inspired Van Gogh's finest paintings. Essentially it's the light, created by the climate here. The Mistral is a stiff wind that blows over the Rhone Valley from the Alps. It sweeps the sky clear of clouds and moisture, creating pure blue air. Unlike the tropics, there is no mist to damper and mute the vivid, primary, contrasting colours. As the Romans also discovered, Provence also has a high water level, good irrigation and lush fertility for a Mediterranean climate. Voilet fields of lavender, yellow fields of wheat, green meadows dotted with red poppies and bordered by oleanders all flourish here in the heat and light. It is something that can only be appreciated when you see it for yourself.