mathurā - in Mathurā; dvārakāya - in Dvārakā; nija-rūpa - personal body; prakāśiyā - manifesting; nānā-rūpe - in various ways; vilasaye - enjoys pastimes; catuḥ-vyūha haiñā - expanding into four wonderful forms.

Lord Kṛṣṇa manifests His own form in Mathurā and Dvārakā. He enjoys pastimes in various ways by expanding into the quadruple forms.