Through Sméagol (Gollum), J.R.R. Tolkien explored profound theological and psychological themes regarding sin, addiction, free will, and pity.

The Psychology of Addiction:

Sméagol represents the devastating power of obsession. The One Ring acts as a physical manifestation of sin and addiction. It erodes his identity, splits his mind into two personas, and traps him in a state of arrested development where he refers to himself in the plural.

The Limits of Free Will:

Tolkien, a devout Catholic, used Sméagol to show how repeated bad choices gradually destroy a person's moral agency. Sméagol is not inherently evil, but his initial choice to murder his friend Déagol for the Ring binds his will to a dark power. Eventually, he loses the capacity to save himself, illustrating how evil enslaves the soul.

The Necessity of Pity and Grace:

Sméagol’s narrative purpose is to prove that mercy is never wasted. Bilbo and Frodo both choose to spare his life out of pity. Though Sméagol ultimately betrays them, his accidental destruction of the Ring -driven by his obsession- accomplishes the quest when Frodo’s strength fails.

Through this, Tolkien delivers his ultimate message: even the most corrupted, miserable creatures can inadvertently serve a higher, providential purpose, and true victory is achieved through mercy rather than raw power.