My whole heart for my whole life.

This brief proverb-like vow expresses total, lifelong devotion: the speaker offers not a portion of affection or a temporary commitment, but an undivided heart sustained across an entire life. Its symmetry (“whole heart / whole life”) emphasizes completeness and permanence, making it apt for romantic pledges, marriage sentiments, or declarations of steadfast loyalty. As a proverb, it functions less as a report of a specific event than as a distilled ideal—an aspirational formula for fidelity and constancy, suggesting that love (or allegiance) is most authentic when it is both wholehearted and enduring.