The rational soul
The rational soul is an individual form which makes an individual human an individual; it is the first to rely upon a subtle body formed of the vapour emitted out of the four humours. The reason is that it is the requirement of the constitutions of the forms to rely upon the matter suitable to them by its proclivity, ready for their occurrence to it. As the rational soul is the most subtle, the most pure and the hardest of the forms, it is impossible for it to rely but upon a body which may be the subtlest of the bodies, subtle to its utmost and extremely balanced. What I mean is, that it may resemble to the Origin, a condition necessary for the occurrence of the rational soul to it. We name this subtle body, which penetrates the thick body, in relation to appearance of perfections of the rational soul in it, as nasama. You try to remember this technical term.
