Challenges : The Loving Sperm Brooch

Every week the European Street Team at Etsy organizes a challenge to make something with a special theme.
The theme last week was organized by Heli and was called "The Unbearable Lightness of Being" (by Milan Kundera).

The sperm cell is the ultimate proxy of "Being", that is of "Life". One of the two partners in the lifelong tango of life creating more life. It takes two to tango, and the sperm cell is very much the active partner.
"Lightness" is loftiness, airiness, drifting on the breeze like dandelion fluff in spring. Lightness is lucidity, a flickering candle flame in that same spring breeze, late in the evening when fading light draws out the moths. Lightness is romance, symbolized here by the golden heart with its crimson boundary.
"Unbearable" is the fate of practically every sperm cell in life: most of them loose their rhythm before the final act and drop out of the tango. Turning the argument around, this brooch is not unbearable at all; to the contrary, it is eminently bearable.