The 3 main themes are an attempt to systematize the vocabulary of EUphoria and highlight the relationship between sustainability and the connection of all human activities with art and culture.

The first main theme correspond to the great challenge that Eleusis and Europe as a whole are facing today, as specified above: the challenge-need to redefine our relationship with the environment, based on the pursuit of “eu” (EUnvironment). The EUnvironment theme is made up of 4 programmes, corresponding to significant areas of the relationship between contemporary humans and the environment. The “Demeter – Mother Earth” programme focuses on our relationship with food. The “Persephone” programme focuses on our relationship with urban green areas, gardens and flowers. The “Ecoculture” programme focuses on climate change, energy and recycling. Finally, the “Feminine Nature” programme focuses on cultural heritage and femininity.