Guarding Your Research
It’s an easy enough mistake to hear “thesis defence” and believe that you have to guard your work.
Defence brings up ideas of protection, or courtrooms, of shielding and more.
An examiner might have a pointed question or comment, but you generally don’t need to worry about them piercing the armour of words and ideas you have fashioned during your PhD.
Defending your thesis means supporting your work. Defending your thesis means providing clarity. Defending your thesis means saying more after you’ve done a lot.
You don’t need to guard your research from your examiners. You do need to be ready to show exactly what it all means at your viva.