How can a bird that is born for joy Sit in a cage and sing? - William Blake

Men are admitted into heaven not because they have curbed and governed their passions or have no passions, but because they have cultivated their understandings. The treasures of heaven are not negations of passion, but realities of intellect, from which all the passions emanate uncurbed in their eternal glory.

It is right it should be so;
Man was made for joy and woe;
And when this we rightly know,
Thro' the world we safely go.

Joy and woe are woven fine,
A clothing for the soul divine.
Under every grief and pine
Runs a joy with silken twine.

"Cruelty has a human heart,
And Jealousy a human face;
Terror the human form divine,
And Secresy the human dress.

The human dress is forged iron,
The human form a fiery forge,
The human face a furnace sealed,
The human heart its hungry gorge.

- "A DIVINE IMAGE