By Night when Others Soundly Slept
Song of Solomon
Direct echo of Song of Solomon 3:1-2: 'I sought him whom my soul loveth.' Bradstreet frames insomnia as spiritual longing, not just anxiety.
Psalm 56:8
Biblical reference—'put my tears in thy bottle' from Psalms. God literally collects and preserves her suffering, making pain sacred.
Eucharist language
Communion imagery—Christ's blood as literal medicine. Puritan theology meets physical healing: wounds 'washt' clean by sacramental blood.