The Three Universal Characteristics are important parts of Buddhist teachings.
Characteristics may be defined as a feature or quality belonging typically to a person, place, or thing and serving to identify them. The Three Universal Characteristics are connected with existence, and they tell us about the nature of existence.
Aicca (impermanence ) – Anicca is the belief that everything changes and that nothing stays the same.Impermanence is one of the essential doctrines or three marks of existence in Buddhism. The term expresses the Buddhist notion that all of conditioned existence, without exception, is transient, or in a constant state of flux.
Anatta (non-self or substanceless ) – Annata is the belief that there is no such thing as “self”, and that there is no immortal soul.
Dukkha ( sorrow or suffering ) – Dukkha is suffering, and Buddhists believe that suffering is caused by bad emotions such as greed or jealousy. Dukkha is the stress, dissatisfaction and suffering that is experienced by all sentient beings who are not fully enlightened.