What more can a person give to a cause, than their very existence? This is the essence of the ancient Roman oath of 'Devotio' - the word from which the modern term 'devotion' is derived.
Read my blog that explores this chilling final resort of ancient Romans at war:
https://www.gordondoherty.co.uk/writeblog/the-greatest-sacrifice?fbclid=IwZXh0bgNhZW0CMTAAYnJpZBEwakRWTXR2ek5uSTJFYVlvNQEeNZVGENCkHeYmyzIBbxt1NxTONyMw2DhxnpSQRnlx4_kGRYFxh1vhtdIkKyM_aem_eRglGEnEcW7QxP-VhbvZDw