[Verse 1] Down at the base of your spine, a triangle made of stone, Latin scribes called it "os sacrum" — the sacred, holy bone, They borrowed straight from Greek, "hieron osteon" was the phrase, A wedge of calcium wonder, lit in old religious praise. [Chorus] Osso sagrado, forte e sagrado, Sacrum's the name, no final das costas guardado, Rabo de cuco, coccyx curled below, Cuckoo's little beak bone, agora você sabe, now you know. [Verse 2] Why sacred? The scholars argue, three roads they explore, "Hieros" could mean holy, but also mighty, great, and more, Some priests laid this very bone upon the altar as a prize, Others swore the whole body rises from it, back to life. [Chorus] Osso sagrado, forte e sagrado, Sacrum's the name, no final das costas guardado, Rabo de cuco, coccyx curled below, Cuckoo's little beak bone, agora você sabe, now you know. [Verse 3] Now travel to the tailbone, coccyx waiting at the end, Named for "kokkyx," cuckoo, for its small curved beak-like bend, Back in week four of growing, you had a little tail, By week eight it folds away — a vestigial trail, Vestigial means a leftover, a hint of what we were, Evolution's postscript, tucked in you and tucked in her. [Verse 4] Zoom out further, see the pelvis as a bowl of bone, Sacrum wedged between two ilia, never standing alone, Sacroiliac joints absorb the shock of every stride, Fibrous bands and cartilage lock the halves on either side, Latin "ilium" means flank, the wing that cradles all within, A fortress built of sacred stone and flank bone knit as kin, Together they support the spine, the cradle for your core, A hidden architecture holding weight you can't ignore. [Bridge] Tumble on the ice, coccydynia bites and stings, New mothers feel it too, after labor's twisting things, A fall onto the buttocks bruises deeper than you'd guess, And the sacrum locks the pelvis tight — sacroiliac finesse, Two wings of ilium hugging bone, a joint we'll learn up next, A dancer's pivot, a runner's stride, a mother's labor flexed, Every step you take relies on this triangular stone, The quiet keystone of your frame, the body's hidden throne. [Chorus] Osso sagrado, forte e sagrado, Sacrum's the name, no final das costas guardado, Rabo de cuco, coccyx curled below, Cuckoo's little beak bone, agora você sabe, now you know. [Outro] Sagrado ou forte, holy or just strong, A bone of many stories carried all along, Cuckoo's little tail bone, hiding what we had, Vestigial whispers of the tail your embryo once had, From Latin to Greek, from myth to the bone we trust, Sacred stone and cuckoo's curve, a map of us. [Chorus] Osso sagrado, forte e sagrado, Sacrum's the name, no final das costas guardado, Rabo de cuco, coccyx curled below, Cuckoo's little beak bone, agora você sabe, now you know.
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