You come to see that suffering is required; and you no more want to avoid it than you want to avoid putting your next foot on the ground when you are walking. In the spiritual path, joy and suffering follow one another like the two feet and you come to a point of not minding which 'foot' is on the ground. You realize on the contrary that it is extremely uncomfortable hopping all the time on the joy foot.
Joy and woe are woven fine,
A clothing for the soul divine;
Under every grief and pine
Runs a joy with silken twine.
It is right it should be so;
We are made for joy and woe;
And when this we rightly know,
Through the world we safely go.