If the heaven/hell aren't imaginary, can we go to those lokas with space crafts?
As Lord Krishna said in Bhagavad Gita
a-brahma-bhuvanal lokah punar avartino 'rjuna mam upetya tu kaunteya
punar janma na vidyate [BG - 8.16]
Meaning
From the highest planet in the material world down to the lowest, all are places of misery wherein repeated birth and death take place. But one who attains to My abode, O son of Kunti, never takes birth again.
- Here he talks about highest/lowest planet, can we go there in a space craft?
- Does this physical body stay for those conditions?
- Can siddhas go there? If so, should they have to leave their physical body here and go there?
- Can siddhas, if they wish, take others too to those lokas?