ideal
satisfying one's conception of what is perfect;

existing only in the imagination;
desirable or perfect but not likely to become a reality

see another keyword links:
perfect

ideal
perfect

to idealize
idealization

an ideal couple
a wonderful match
lovers matched by God

dreamland
land of dreams
an imagined and unrealistically ideal world

dreamworld
realm of dreams
a fantastic or idealized view of life

fairyland
wonderland
beautiful place
imagined ideal place

World Peace
an ideal of freedom, peace,
and happiness around the world