极乐世界 or Land of Ultimate Bliss can also not
necessary stereotype it to be Amitabha Buddha’s pure land. if u
break the word, it's meaning of Nirvana. but must understand it
thoroughly and not to mistake it to be a heavenly place.
极乐 Ultimate Bliss means:-
Ordinally happiness 乐 when ended, suffering
occur there after.
Know that suffering is real, and happiness is
false. As suffering don't become happiness, but happiness can
become suffering.
Example, when eating good food. Eating your
favourite food is happiness. But, if you were to continue to eat
bowl after bowl of the same food, it becomes a suffering. This is
how happiness become suffering. happiness if continuous become
suffering. But suffering if continue does not become
happiness.
Example, when hungry, i am experiencing
suffering. If one continue to stay hungry for 7 days, one will
experience more suffering, not happiness. So suffering is real, and
happiness is false.
Now neither suffering nor happiness is a good
experience/realm. But one cannot sustain this state as time waits
for no man.
Example when we are born, we are already
walking towards the deathbed. Who can stop moving? None.
But it's said that in Nirvanic Bliss(Ulitmate
Joy 极乐), there's no all above three forms of sufferings.
In this samsara world there's duality.
Suffering and joy is Prejudiced view for one side or the other. If
Ulitmate Joy has no suffering, then Joy is also gone. As
it's on the same side with suffering. One gone,
the other is gone too. It's when both suffering and joy is ended
that bring forth the Ulitmate Reality of Nirvana (aka
極樂, Ulitmate Bliss). Thus called True
bliss/joy. If there's joy, then joy is suffering and False.
Ulitmate Joy is indeed inconcievable! Inconcievable mean cannot be
said, nor cannot be think nor cannot be percieve.
Samsara is dimension of matter/karma
controlling, you can't have your own wish or doing, hence
suffering. Nirvana is a state/dimension of Mind/will/vow
controlling, hence no suffering. There's this Utimate reality
Buddha discovered.
世界 means:-
When the Mind is Pure, the Land is pure.
that say:-
All beings do not see mountains and waters in the same way. Some
beings see water as a jeweled ornament, but they do not regard
jeweled ornaments as water. What in the human realm corresponds to
their water? We only see their jeweled ornaments as water. Some
beings see water as wondrous blossoms, but they do not use blossoms
as water. Hungry ghosts see water as raging fire or pus and blood.
Dragons see water as a palace or a pavilion. Some beings see water
as the seven treasures or a wish-granting jewel. Some beings see
water as a forest or a wall. Some see it as the Dharma nature of
pure liberation, the true human body, or as the form of body and
essence of mind. Human beings see water as water. Water is seen as
dead or alive depending on causes and conditions. Thus the views of
all beings are not the same.
i say if you are sitting next to a Buddha, be it Shakyamuni or
Amitabha, what we, ordinary people see is samsaric environment.
while what the Buddha see is pure land as described in Amitabha
pureland sutra. a defiled mind see a defiled land. a pure mind see
a pure land.
it is not wrong to say that "Pureland is as real as this defiled
world".
/\
welly advice.
As for Samsara is not so very
correctly interpreted. Samsara
means 'can endure/tolerate', it means that beings other
than liberated beings who are living in a
condition of suffering but they deemed it as true
happiness and subscribed to this false happiness as though
it's true happiness, and continue to endure until they see stars on
last breath, and still strongly perceive that this is usual
way of life. Such as highly educated scientists and common
folks who did not attempt or challenge themselves
in other perspective like dharma 
/\