The condition “Value is true” will trigger the Event if the value returned is true.

Example: You are exposing a banner to 50% of your visitors using the “sample rate” building block to get an understanding of whether the banner has a higher conversion rate or not. The “sample rate” building block is generating a true/false value randomly to your visitors. When the sample rate-building block returns a true value, the Event will trigger i.e the banner will appear.