Śrīmad-Bhāgavatam · Text 4.24.18
Who is speaking and story frame
आत्मारामोऽपि यस्त्वस्य लोककल्पस्य राधसे ।
शक्त्या युक्तो विचरति घोरया भगवान् भव: ॥ १८ ॥
ātmārāmo ’pi yas tv asya
loka-kalpasya rādhase
śaktyā yukto vicarati
ghorayā bhagavān bhavaḥ
Lord Śiva, the most powerful demigod, second only to Lord Viṣṇu, is self-sufficient. Although he has nothing to aspire for in the material world, for the benefit of those in the material world he is always busily engaged everywhere and is accompanied by his dangerous energies like the goddess Kālī and the goddess Durgā.
Read Śrīla Prabhupāda's purport on Vedabase.io