The phrase "great richness" refers to having a large amount of something valuable or desirable. It can be used to describe abundance or a high quality of wealth, resources, or experiences. Full definition
The carrots add a little sweetness, while the earthy flavor of thyme and chicken broth gives such great richness to this dish! (abiteofinspiration.com)
It is a way of thinking and being which can leaven the challenges of aging with great richness of meaning and joy. (sicgt.org)
What we need to do in order to grasp its meaning is to give full recognition to both elements, and the divine message will shine through with greater richness and power if we understand something of the channels of human fallibility mixed with high insights through which the message comes. (religion-online.org)