A life without external irritants is neither possible nor desirable. In medicine, irritants that provoke a reaction allow the body to expel toxins.
The process of drawing poisons out doesn’t feel good. A “spiritual person” isn’t supposed to react this way, so they tend to add self-judgment to the irritation.
In fact, you can’t help but react to irritants: that’s what they’re for.
Observing your reactions closely allows the toxins to pass through you more quickly and not spill out onto others. Irritation lets you see the parts of you that are irritable—internal irritants—and let go of them.