In "Anam Cara: A Book of Celtic Wisdom," John O'Donohue emphasizes the profound significance of individual inner worlds. He suggests that each person is responsible for their unique experiences and perceptions, viewing their inner life as a private sanctuary. This concept illustrates the importance of self-awareness and the rich inner landscapes that shape our understanding of reality.

The notion of being a custodian of one's own world highlights the responsibility we have toward our thoughts and emotions. O'Donohue's insights remind us that deep connections with ourselves can lead to a fuller appreciation of our existence and relationships with others. The recognition of this individualism encourages a deeper exploration of our own identities.