Resolved State & Observation

What is exactly a state, people define it as "Every scenario the Agent encounters in the Environment" but also as "The information used to determine what happens next". In these cases, the state is the same as the observation of an agent in ml agents?

 

State is all the observations an agent receives from the environment. In context of reinforcement learning that is the information that is used to determine an action. Those sentences don't contradict each other, although it might be slightly misleading.