पुरुषः स परः पार्थ भक्त्या लभ्यस्त्वनन्यया। यस्यान्तःस्थानि भूतानि येन सर्वमिदं ततम् ॥

puruṣhaḥ sa paraḥ pārtha bhaktyā labhyas tvananyayā yasyāntaḥ-sthāni bhūtāni yena sarvam idaṁ tatam

He, the highest Spirit, O Pârtha, may be reached by unswerving devotion to Him alone, in whom all beings abide, by whom all This is pervaded.

In plain words: The highest Spirit can be reached through steady love and devotion to him alone. All beings live inside him, and he fills the whole universe.