Meaning of "Only One" by Illenium

The lyrics of "Only One" express deep appreciation and gratitude towards a person who has played a crucial role in the speaker's life. The repetitive emphasis on being the "only one" highlights the unique and irreplaceable nature of this individual's impact. Despite facing fear and uncertainty, the presence of this person serves as a source of strength and belief for the speaker. They acknowledge the profound influence of this person, recognizing that they have been the sole source of support and comfort during challenging times. The mention of seeing "insides from the outside" suggests a level of deep understanding and connection that goes beyond surface-level relationships, symbolizing a profound bond. The lyrics convey a sense of hope, resilience, and gratitude for having this person in their life, ultimately emphasizing the significant role they played in keeping the speaker alive.