The concept of Heaven varies across different religious and philosophical beliefs, so there is no definitive answer that applies to all perspectives. I can provide you with a general understanding based on some religious beliefs.
In many religious traditions, Heaven is often described as a realm or state of existence that transcends the physical world and is not confined by space and time as we understand them. It is often depicted as a divine abode or a place of ultimate happiness and union with God or the divine.
From this perspective, Heaven is not necessarily located in the void where God was before creation or within the confines of our physical universe. It is considered a separate spiritual realm or dimension that is beyond our comprehension and not bound by the limitations of space and time.
It's important to note that beliefs about Heaven can differ among different religions and denominations. Some traditions may describe Heaven in more concrete terms, while others may interpret it as a metaphorical or symbolic concept. The nature of Heaven and its relationship to space, time, and the divine can vary significantly depending on one's religious or philosophical worldview.