From SIN to HEL

There is an old adage
that rings a bell:
a route leads directly
from sin to hell.
And, by the same token,
if one is keen,
a reverse route takes them
from hell to sin.
I will not deceive you,
and I must tell:
I've travelled quite often
from SIN to HEL.
Did I go, you wonder,
from HEL to SIN?
Indeed, I have done that,
there I have been.
So what, that in neither
I did much dwell?
HEL-sinki, SIN-gapore.
It's just as well.

Z powrotem