In Our Bodies Are Mostly Water, grief comes in pieces, fragments, prose poems, and dreams. We slip in and out of time when we're grieving, how we feel we can't bear it and yet we do, how we create art in the face of loss because that's how we make meaning of this inevitable human experience. Katherine Riegel finds a way through her grief in her compassionate and lyrical memoir of her sister's life and death. Her sister-grief becomes a conduit for grief of all kinds, as she navigates a new life inundated with sadness but bright with memory.