How does "The Tyger" represent people's attraction toward and repulsion from evil?

To answer this question, consider the poem’s central
image: the tiger itself. It is a creature both fearsome and
handsome.  In William Blake’s words, it is
framed with “fearful symmetry.” Blake’s presentation of the tiger is not too dissimilar
to popular presentations of vampires. Just as vampires are evil and yet
wonderful to behold, so is the tiger in Blake’s poem. It is composed of a
twisted heart, of dreadful hands and feet, and yet we can’t take our eyes off of it. We
are continually compelled to look toward this horrifying image rather than
away from it. We are compelled toward fear and
wonder.

Besides the poem‘s compelling central image, the
very meter of the poem determines that we will scarcely be able to remove our eyes from
the disturbing vision being presented to us. It drives us forward and deeper into the
poem’s disquieting central question, which is a question that forces us to face the
simultaneously horrific and beautiful work of the creator or God
force.  It forces us to reconsider the nature of God and/or the universe,
so that ultimately it is not just the imagery of the poem, but instead the force of the
philosophical and religious issues the poem raises,
(particularly on the origin and nature of evil) that both
attract and repel the reader.