This poem makes deep connections both within the poet and within the legends of the Elder tree, rich in associations, especially of death an resurrection... the "florets" are a feature of that tree, white and magical in faerie lore. The "ruefilled thoughts" makes me stir, and want to hear "ruffled", which lightens the feeling slightly as if the thoughts were some larger petalled bloom to contain the others... The last line is most evocative, and open for interpretation. Along with being a look beyond... into the unknown, where we are rapt in beginnings and endings, it has for me an alluringly sexual overtone, and seems to call out for the feminine.