I can be a support, hold things together, or help open and close. I enclose words in a sentence or symbols in an equation. In March, you might join the madness and fill me out.

Grow in caves from the ceiling, Slow I am made by water dripping.

Arr matey, a wooden home for treasures untold, Stacked high in the hold, like gold they enfold. Ye'll find these in the galley, or on the deck, Hoist them up, and mind yer neck!

I’m an Asian food you see Cheap and in groups I’m found, however I’m not rice.

My first is a food that Dr. Seuss did rhyme, My last means to give someone a hard time. Together, it’s a place to spend a lazy day Relaxing as back and forth you sway.