**One day in a land far away**

Some mathematicians at play

Found a transform of convenient form

The basis of physics today.

** Convolving would wreck people's brains**

Still the advent of Fourier domains

for convolving in one

means multiplication

in the corresponding domain.

** Got trouble with an ODE?**

Fourier transforms will set you free

When once you would cry,

You now multiply,

by a constant times the frequency.

** Fourier transforms backwards and forth**

I hope that you now see their worth

For in every domain

Advantages reign

Fourier was the salt of the earth.