Do you believe Heaven or Svargaloka is a location on another planet in the space? So, theoretically, if there was a capable spaceship, and if you had the address of that planet or locationin the Space, you could travel there?
I do not believe that Heaven is a place that we go to when we die. I believe it is a spiritual dimension but I really don't know what it means to say that.
I am sure you know the following quotes, so maybe you can interpret them for me.
What does it mean to say that this world and the spiritual world are the exact counterpart of each other?
What does it mean to say that the world of existence is a single world?
What does it mean to say that there is no real separation between this world and the spiritual world?
“The spiritual world is like unto the phenomenal world.
They are the exact counterpart of each other. Whatever objects appear in this world of existence are the outer pictures of the world of heaven.”
The Promulgation of Universal Peace, p. 10
“Your questions, however, can be answered only briefly, since there is no time for a detailed reply. The answer to the first question: the souls of the children of the Kingdom, after their separation from the body, ascend unto the realm of everlasting life.
But if ye ask as to the place, know ye that the world of existence is a single world, although its stations are various and distinct.” Selections From the Writings of ‘Abdu’l-Bahá, p. 193
“Those who have passed on through death, have a sphere of their own. It is not removed from ours; their work, the work of the Kingdom, is ours; but it is sanctified from what we call ‘time and place.’ Time with us is measured by the sun. When there is no more sunrise, and no more sunset, that kind of time does not exist for man.
Those who have ascended have different attributes from those who are still on earth, yet there is no real separation.” ‘Abdu’l-Bahá in London, pp. 95-96
I believe that Jesus is in the spiritual world, wherever that is.