This poem is from Shashi Tharoor's book The Riot:
How to Sleep at Night
Try to think of nothing.
That's the secret.
Try to think of nothing.
Do not think of work not done,
or of promises unkept, calls to return,
or agendas you have failed to prepare for meetings
yet unheld.
Think of nothing.
Do not think of words said and unsaid,
or minor scandals and major investigations,
of humiliations endured, insults suffered,
or retorts that did not spring to mind
in time.
Think of nothing.
Do not think of your wife,
of lonely children and their reproachful demands,
or the smile of the pretty woman
whose handshake lingered just a shade too long
in your palm.
Think of nothing.
Do not think of newspaper headlines,
of the insistent transience of the shortwave radio,
or the seductive stridency of the TV microphones
thrust so thrillingly
into your face.
Think of nothing.
Do not think of the waif on the foreign sidewalk,
her large eyes open in supplication,
her ragged shift stained by dirt and dust,
stretching her despairing hand towards you
in hope
No, do not think
of the solitary tear, the broken limb,
the rubble-strewn home, the choking scream;
never think
of piled up bodies, blazing flames,
shattered lives, or sundered souls.
Do not think of the triumph of the torturer,
the wails of the hungry,
the screams of the mutilated,
or the indifferent smirk
of the sleek.
Think of nothing.
then you will be able
to sleep.