How to make tea in darkness

If you pour simmering water

Into your mug, shrouded in darkness,

Unable to see, you must learn

How to listen and hear

The water trickling down from

A kettle into the vessel.

Heat rising, climbing up

The porcelain. Watch it!

Reaching for the brim,

It warms your palm.

But it's willing to scald,

Happy to grab your hand,

And peel off your skin.

Watch it! Feel it!

The heat, the sound

Of the trickling water.

Or better make sure that

You pour it at a low

And constant flow rate,

Quickly solve the heat transfer equation

For your mug, and then

You'll know precisely when the heat

Reaches the brim; according to your

Assumptions and calculations,

The water level at this point

Must be 2 centimeters lower.

It's time to stop!

Good timing, indeed.

Now, let your tea bag swell

And color the water.

In the meanwhile,

Grope for the fridge,

Extract a lemon, cut a slice,

And drop the yellow translucent

Disc in your tea.

Enjoy!

P.S. You could have just

Switched on the light

And avoid all that hassle.