Euphoria

You get a feeling of euphoria upon completing a hike of the Appalachian Trail.

The euphoria of victory does not blind us to the realities of the moment.

The symptoms include evasiveness and euphoria.

After the war, the entire country went through a period of euphoria.

The runner was in (a state of) absolute euphoria after winning his first marathon.

The effects caused by inhaling nitrous oxide gas, such as lightheadedness and euphoria, can be felt within seconds.