This is called the naimittika, or occasional, annihilation, during which the original creator, Nārāyaṇa, lies down upon the bed of Ananta Śeṣa and absorbs the universe within himself while Lord Brahmā also enters. The naimittika destruction is the first of the four types of destruction. Nārāyaṇa withdraws the universe into himself and sleeps. Brahmā also enters Nārāyaṇa and sleeps. Taking Brahmā’s sleep as the cause (nimitta), the Lord destroys the three worlds. Thus this destruction is called naimittika. This is a daily destruction.