vastasseisule

Vastasseisule, also known as the "sixth day plant" or *Sisupäevane taim*, is a fictional plant species popularized in Estonian folklore and children's literature. The name derives from Estonian, where *vastas* means "opposite" and *seisule* refers to a type of plant, though its exact botanical identity remains unclear. The legend describes it as a rare, magical plant that blooms only on the sixth day of the week, hence its name.

According to folklore, vastasseisule possesses unique properties, often depicted as having the ability to heal illnesses, ward off evil spirits, or even grant wishes if properly harvested. The plant is said to grow in hidden, mystical locations, such as the bottom of wells or beneath ancient trees, and is typically associated with folklore tales meant to teach moral lessons or explain natural phenomena.

The concept of vastasseisule gained broader recognition through Estonian children's stories, particularly in the works of authors like August Gailit and in traditional oral narratives. It is often used as a symbolic figure in tales about curiosity, respect for nature, and the consequences of disobedience. For example, some stories warn that plucking the plant without permission may bring misfortune, reinforcing cultural values of humility and reverence for the unknown.

While vastasseisule is not a real plant species, its cultural significance reflects broader European folklore traditions involving mythical flora. The legend persists in modern Estonian storytelling, appearing in books, games, and educational materials aimed at preserving folklore heritage. Its enduring appeal lies in its blend of mystery, morality, and the imaginative spirit of Estonian oral traditions.