Answer:
The poems "Tyger" and "Lamb" by William Blake share an underlying theme. Both poems express the speaker's wonder at God's creation and at the fact that the same God who created the lamb also created the tiger.
The rhyming scheme in each poem helps communicate voice. In poetry, voice can be the imagery, the tone, the diction, the rhythm, all the devices used to build a connection between the speaker and the reader.
In The Lamb, we can sense sweetness and admiration:
[...] Gave thee such a tender voice, Making all the vales rejoice! Little Lamb who made thee Dost thou know who made thee Little Lamb I’ll tell thee, Little Lamb I’ll tell thee!
In The Tyger, we can sense fear and terror:
[...] And when thy heart began to beat, What dread hand? & what dread feet? What the hammer? what the chain, In what furnace was thy brain? What the anvil? what dread grasp, Dare its deadly terrors clasp?
The tiger embodies the beauty and mystery of paradise. The same forests of the night, the same paradise, the same earth are walked upon by the tiger and the lamb. The two animals, though representing very distinct feelings, have one important thing in common. The tiger, representation of danger and power, and the lamb, representation of innocence and meekness, were both created by the same God.
Through the poem, the tiger's aura is filled with wonder, with fire and terror. Yet, the tiger paces the forests of the night along with the other animals created by God.