Flowers have incredible power. Their fragile beauty and brief life can teach us to enjoy without attachment, to experience deeply while knowing full well the experience is temporary. It is the same with all life... On the spiritual path it is not the pleasure we want to renounce, it is the attachment to the pleasure. Life will have its joys and its sorrows; to live fully we must live from the source, without attachment to either pleasure or pain.
What keeps us from forgiving the people who hurt us is that we have not yet healed the wounds they inflicted. Forgiveness is the gift at the end of the healing process. We find it waiting for us when we reach a point where we stop expecting "them" to pay for what they did or make it up to us in some way. Yet, forgiveness is moving on. It is recognizing that we have better things to do with our life and then doing them.