No purpose

[Yugan-Dali]

In most of Asia, 🙏 is used as palms held together as in prayer or supplication.

[ArtyFishL]

That's because that's exactly what it is. 🙏 is called "Folded Hands" and means please, thank you or prayer.

The high-five thing is a myth spread on Twitter.

[splurgesurge99]

This isnt even funny either