Analysis of Sonnet XI: Tears, Vows, and Prayers

Tears, vows, and prayers win the hardest heart:
Tears, vows, and prayers have I spent in vain;
Tears cannot soften flint, nor vows convert;
Prayers prevail not with a quaint disdain.
I lose my tears where I have lost my love;
I vow my faith where faith is not regarded;
I pray in vain a merciless to move;
So rare a faith ought better be rewarded.
Yet though I cannot win her will with tears,
Though my soul's idol scorneth all my vows,
Though all my prayers be to so deaf ears,
No favor though the cruel Fair allows.
Yet will I weep, vow, pray to cruel she;
Flint, frost, disdain wears, melts, and yields we see.