We tend to think of mercy as a character trait possessed by the weak or, at the very least, by those who are ungrounded in reality. The truth of the matter is that mercy is a complex quality involving, as a baseline, forgiveness, charity and compassion. Mercy requires a rare maturity of Spirit and strength of muscular character to exercise in its fullness.
When mercy is in bloom, its flower indicates we have been through the frozen hell of spiritual isolation, until we asked for the fires of purification to comfort and warm us. And, in that warming, all that held us apart from everything that lives, breathes and exists was burned up in its totality, leaving us to stand naked and aware that there is no separateness and that each of us has a role to play which is far greater than we could ever have envisioned for ourselves.