I’m not a place, but in me the wise stay Forever arriving while going away Sometimes an object concealed then revealed Sometimes I’m tense, but not in the sense you feel

Left on my own, I’ll help you ascend With age, into violence I’m bound to descend Add a common insect and I’m proliferation without end Add me to art and your castle wall I’ll defend

I can spin for seconds or even minutes, but I cannot be on the bottom. You might see me in a children’s toy box or as a flavor of quark.

I follow picnic, periodic, and dinner, But I come after of contents, tennis, and manners.

Porcelain fine or paper light, I hold your meal just right. Or,beneath the ground, I shift and break, causing lands to bend and shake.