Jai Sri Ganesha,
Other world is reality for spirit, definition or classification of other world is not limited to word and perceptive skill of mind this side, material truth may differ on varying chapters but spiritual reality and celestial culture,
Other word is bifurcated with thin line of eternity that hard to make it from this side except for mystic with that vision,
Attainable after falling of the body here, supported by scriptural truth,
Other world could be the same one but with different approach and varying truth of identity and may not be the same in many cases, yet a reality for spirit to bear with,
May Lord bless all,
Thanks please