The "midst" of something in the Bible represents the thing that is most central and most important to the spiritual state being described, the motivation that drives everything else. In general this will be something we love or feel, because at the core of things we are what we love; our loves define us.

(Odkazy: Apocalypse Revealed 44, 90, 268; Arcana Coelestia 2252, 2940, 10153, 10365, 10557, 10635, 10641)

882. 'And he proceeded to send out the dove from the ark' means a state of receiving the goods and truths of faith. This is clear from what has been stated at verse 8 where nearly identical words appear, with the difference that there it is said 'he sent out the dove from himself', for the reason also given there, that at that time he himself was the source of every work of truth or good which he performed. That is to say, he believed that he performed it by his own power, meant by 'from himself'.