What does it mean that there is a sign of hand pressing the circle in the notification bar of Xiaomi note?

The circle above the notification bar of Xiaomi note is the message bar, indicating that the corresponding application of notification has been started. Here's how to do this:

1, enter the drop-down menu of mobile phone.

2. You will see a circle and click the pop-up window.

3. Whether the window interface is set to shielding or not, just select it.