https://www.huffingtonpost.ca/entry/...d15?ri18n=true

In this letter, "You made me realise that a mother's courage might come in the form of her tears. I might not have the physical ability to block her from what will take her away from me, but..."

What does the underlined sentence mean? Does it mean that a mother's courage may be expressed in the way of crying?

Thanks!

Jason