Today is the Memorial of Our Lady of Sorrows. We know how Mary must have suffered when she witnessed the Passion of her own Son. As Simeon predicted, she should be pierced by a sword (Luke 2:35). This was indeed her martyrdom.
For those of us who do not know the love of God yet, intense sufferings can be crushing, bringing on despair ~ this is sad. But for those who gladly offer up their sufferings to God for his glory, there is always a sweetness to it. The joy of Christ's Resurrection fills us with hope, capable of overriding all our sorrows.