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Welcome, amro2278, to Apple Support Communities!

That “ball” with the “swirly” colors is Siri.

Apparently, you performed the interface gesture to call Siri up.

Does your device have a home button?

(I haven’t used a device with Face-ID, yet, so I’m not familiar with the Siri gesture on such devices.)

That is Siri’s icon. You invoked Siri, and it is still active.

amro ~ See::

Use Siri on all your Apple devices - Apple Support

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Assuming the blue marble like orb, that is Siri.

Yes, amro2278, all it takes is holding the home button a little too long.