"It is an accepted commonplace in psychology that the spiritual level of people acting as a crowd is far lower than the mean of each individual's intelligence or morality"

This quote by Christian Lous Lange highlights the idea that when people come together as a crowd, their cumulative spiritual level is often lower than the average level of intelligence or morality possessed by each individual. In other words, the actions and behaviors of a group can be affected by factors such as peer pressure, mob mindset, and a desire to adhere, which can cause a decrease in the total spiritual consciousness of the group. This can be seen in instances of group violence, discrimination, and other unfavorable habits that may not be displayed by the individuals by themselves. It serves as a reminder to be mindful of our actions and the impact of the crowd on our spiritual well-being.