"To express a larger totality of being, we may refer to "a camp of angels". In the general camp of "love", for example, there are many subdivisions, virtually innumerable shades and gradations of tender feeling. No two loves are alike in emotion, just as no two ideas are alike. Thus, any general and inclusive drive or impulse is a whole camp and is not consistently the same at every level. Whereas among human beings emotions change and vary either as persons change or according to the circumstances of time and place, an angel is totally the manifestation of a single emotional essence.
The word for angel means also "messenger". As its name in Hebrew signifies, the nature of the angel is to be an envoy to a degree, thereby constituting a permanent contact between worlds. An angel's missions transpire in two directions: it may serve as an emissary of G-d toward the earthly, and/or it may also serve as the one who carries heavenwards from below, from our world to the higher worlds.
The real difference between man and angel is not the fact that man has a body, because the essential comparison is between the human soul and the angel. The soul of man is most complex and includes a whole world of different existential elements of all kinds, while the angel is a being of single essence and therefore in a sense one dimensional. In addition, man, because of his multi-faceted nature and capacity to contain contradictions (including his gift of an inner power of soul) has the capacity to distinguish between good and evil. It is this ability which makes it possible for him to rise to great heights, and by the same token creates the possibility for his failure and backsliding, neither of which is true for the angel.
