Strengthened By Grace?

Lot’s of practical, easy to understand and apply teaching in today’s reading (Hebrews 13), but the verse that perked my interest was:

I wonder what exactly that means, what it looks like. What do you think? When was a specific time you feel like your heart was strengthened by grace? And what could you do, today, this week, month, year, to strengthen your heart by grace?

What does that mean? What does it look like?