Capacity means how much something – someone – can hold or tolerate. Toleration of pain may not be such a good thing as the numbness may block out reason as well. Intolerance of great things may indicate a being whose ability to receive blessings has been impaired.
As with most things, the middle way is most likely to be sustainable. “Capacity” may be another way of saying “limits.” We can only take so much; right?
What is the difference between capacity and limits? Does reaching our capacity reveal limitations – or does it provide a realistic measure of our abilities? What are your limits as contrasted with your capacities?