cornerstone (noun): an important quality or feature on which a particular thing depends or is based.
you gave me the resolve that i needed and the strength to believe i was worth it. now my foundation is crumbling in the spot you once occupied. slowly my rock has turned to dust and iβm falling down to the ground, back to the place where you found me before you built me up, made me taller than the other buildings surrounding me.
i donβt think anyone else has the right tools to make me solid again.