I have preserved my heart solely because my beloved resides in it.

In this tender couplet, the poet reveals why they nurture and protect their heart with such care—not out of self-love, but because it serves as a sacred dwelling for the beloved. The heart is imagined here not merely as an organ of feeling, but as a home that must be cherished and kept alive so the lover's presence has a sanctuary. It reflects that sweet, selfless stage of devotion where one's own life matters only because it carries the presence of someone deeply loved.