CLEAN : Shetlands Vikings take part in Up Hella Aa fire festival

The transcript describes a gathering where people from countries like New Zealand, Canada, and Norway come together to be part of a squad. It highlights the humbling experience of being involved and the positive emotions it brings. The annual tradition is marked by the smell of paraffin and the vibrant atmosphere created by singing and torches.

What locations are mentioned as places where people come from to join the squad?

What does the speaker mean by saying it is 'humbling' to be part of the event?