Where is heaven?

Most people think that the Kingdom of Heaven is up in the sky somewhere. Technically, heaven is wherever the presence of God is known to be and we know that God is omnipresent. From a more common perspective, the Kingdom of Heaven is both a physical place and a spiritual place. Spiritually, it is a state of mind, a place of wellbeing coupled with love, joy, peace, happiness, and etc. Physically, the Kingdom of Heaven is here on earth right now. The Kingdom of Heaven will also be here on earth when Christ returns for His saints. Bear in mind, the saints are to rule and reign with Christ in His Kingdom. Rev. 5:10 states that the saints will become kings and priests, and they shall reign on the earth, therefore the Kingdom of Heaven is literally be here on here.