We are all low down in this total Scale of Being, which means we include very little in our consciousness of what we are like ourselves, projecting on to others all we cannot accept as being in ourselves, so we are very brittle to insult. But as Consciousness increases we include more and more as being in ourselves, with an increasing lack of conceit, until we cannot be insulted.

Remember that it is said that self-observation must be uncritical. You do not observe yourself in order to criticize yourself. If you do so it will at once stop self-observation and lead to internal considering.