You want to associate Insights with calendar events to associate with the insights so you...

All events are taken into consideration during prediction regardless of active or inactive status.

Events are typically one-off or recurring events that historically led to spikes or declines in data.

When you use events, spikes or falls in data are automatically normalized and distributed over the analysis period.

Using events helps you plan ahead for the events and take advantage of opportunities by allowing you to see anticipated spikes and falls in the insight data for specific events.

After creating events, you cannot choose to skip the historical data spikes or falls, so that the data for the event is always included in the analysis.