A song to Sana in (becoming) sea is a love letter to my unborn son. As a piece that works through grief, it recognises that grief as embodiment is a series of processes of accumulation, as well as of weaving and attuning to multiple human and more-than-human beings and bodies of water. Drawing upon Michrochimerism, or the fate of travelling cells from mother to son, this piece is constructed of seven citations that dwell on Astrida Neimanis’s “becoming bodies of water”.  It speaks to the multiplicity of entanglements and the impossibility of separation, as Katherine McKittrick reminds us: “what I know, where I know from, who I know from, and why I cannot possibly know.”