Whilst the answer to this riddle is like the ground inside your door, it may still knock you down or bring a sense of awe.

In a garden of colors, I stand tall and proud, dressed in royal hues. Often mistaken as a berry, I'm the nightshade's purple muse.

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I have chains but no locks, a seat but no legs. I can take you high into the sky, yet I never leave the ground. A push or a pump will make me go.

I connect what was broken I join either side You cross me when ready I swallow my pride I carry your burdens wherever you stride But burn me in anger and your world comes untied They bid for my hand and I dealt what I could A captain once stood on my back in the flood I fill what's been broken in jawbone or wood And some live beneath me misunderstood In music I move you from verse to refrain A river runs under me heavy with rain I'm crossed by the daring abandoned in vain I'm nothing but passage between pleasure and pain