The classic meditation verse picturing Vishnu at perfect rest on the serpent Shesha — cloud-dark, lotus-naveled, lord of Lakshmi — remover of the fear of worldly existence.
Shesha, the thousand-hooded serpent floating on the cosmic ocean, represents the totality of time and remaining potential. Vishnu's effortless rest upon it — yoga-nidra — expresses supreme mastery: sustaining all worlds without agitation.
Source: Traditional dhyana-shloka of Vishnu (Puranic). Regional versions may vary — this text follows the version most widely used in community worship.