It must first be stated what redemption is. To redeem means to free from damnation, to reclaim from everlasting death, to snatch from hell, and to release the captives and those in bondage from the hands of the devil. The Lord performed this by conquering the hells and founding a new heaven. The reason why people could not by any other means be saved was that the spiritual world is so closely integrated with the natural world that they are inseparable. This principally affects people's interiors, what is called their souls and minds; those of the good are linked with the souls and minds of angels, those of the wicked with the souls and minds of the spirits of hell. Their union is such that if a person were deprived of them, he would fall lifeless, like a block of wood. Likewise neither could angels and spirits remain in existence, if human beings were taken away from them. This will make it plain why redemption took place in the spiritual world, and why heaven and hell had to be brought into order before a church could be established upon earth. This is clearly stated in Revelation, where it is said that after the creation of a new heaven, the New Jerusalem, which is the new church, came down from that heaven (Rev. 21:1, 2).