18. A further proof that heaven comes from the human race is the likeness between the minds of angels and human beings. Both enjoy the ability to understand, perceive and will. Both are designed to receive heaven. For the human mind is just as wise as that of angels, but its wisdom is restricted in the world, because it is then in an earthly body, and in this a person's spiritual mind thinks naturally. For the spiritual thought which he possesses as much as an angel then descends into natural ideas corresponding to the spiritual ones, and is so there perceived. It is different when a person's mind is released from the shackles of that body. Then it ceases to think naturally, and thinks spiritually; and when it does that, its thoughts become to the natural man incomprehensible and ineffable, that is, like an angel's. From this it may be deduced that a person's internal, what is called his spirit, is in essence an angel.# See HEAVEN AND HELL (HH 73-77) for a demonstration that an angel has a perfect human form. But when a person's internal is not open upwards and only downwards, then although on release from the body it still has a human form, it is a dreadful and devilish one. For it is unable to look up to heaven, but only down to hell. # A person's life has as many levels as there are heavens; and these are opened to him after death depending on how he lived (AC 3747, 9594). Heaven is inside people (AC 3884). People whose lives are dictated by love and charity have angelic wisdom in them, but it is then hidden, only being made available after death (AC 2494). People in the Word are described as angels, if they receive the good of love and of faith from the Lord (AC 10528).