Try me with one 'specific' question at a time, please.
Quote - 'Where does consciousness reside' END quote...
By adding - Quote - 'If nothing physical exists?'
You are going from 'A-Z' in One step (Skipping the entire journey).
Why correlate 'consciousness' with 'non-physicality'?
How do you know if 'your' definition of 'consciousness', 'nothing' and/or 'physicality' are even in the vicinity of mine - Let alone anyone elses?
Imagine asking a martian if it believes in God - When it has no concept thereof?
'REALITY' is NOT 'universal'.
And mine is Not yours.
Once the halls of Amenti, no longer reside
In the folds of the empty, unseeming divide
shall the essence of ALL, encumbered, preside
Over Everything, withered, Inside
Have a modestly illuminating existence