Bhagavad Gita: Chapter 9, Verse 13

BG 9.13: But the great souls, who take shelter of My divine energy, O Parth, know Me, Lord Krishna, as the origin of all creation. They engage in My devotion with their minds fixed exclusively on Me.

Shree Krishna’s style of discourse is that He drives the point home by making starkly contrasting comparisons.  After describing the ways of the deluded and confused, He now talks about the great souls.  Material life is a prolonged dream, which is being experienced by the souls who are sleeping under the sway of the material energy.  In contrast, the great souls are those who have woken up from their ignorance and brushed aside material consciousness like a bad dream.  Released from the grips of the material energy, Maya, they are now under the shelter of the divine Yogmaya energy.  Such enlightened souls have woken up to the spiritual reality of their eternal relationship with God. 

Just as God has both aspects to His personality—the formless and the personal form—His Yogmaya energy also possesses both aspects.  It is a formless energy, but it also manifests in the personal form as Radha, Sita, Durga, Lakshmi, Kali, Parvati, etc.  All these divine personalities are manifestations of the divine energy of God, and they are all non-different from each other, just as Krishna, Ram, Shiv, Narayan, etc. are non-different forms of the one God. 

Brahma Vaivarta Purāṇ states:

yathā tvaṁ rādhikā devī goloke gokule tathā

vaikuṇṭhe cha mahālakṣhmī bhavati cha sarasvatī

kapilasya priyā kāntā bhārate bhāratī satī

dwāravatyāṁ mahālakṣhmī bhavatī rukmiṇī satī

tvaṁ sītā mithilāyāṁ cha tvachchhāyā draupadī satī

rāvaṇena hṛitā tvaṁ cha tvaṁ cha rāmasya kāminī

“O Radha, You are the Divine Goddess of Golok (Shree Krishna’s divine Abode) and Gokul (Shree Krishna’s Abode in the material realm, when He descended on earth 5,000 years ago).  You exist in Vaikunth (Lord Vishnu’s Abode) as Mahalakshmi.  You are the consort of Lord Kapil (one of the descensions of God).  You reside in Dwaraka as Rukmini (the wife of Shree Krishna).  You manifested as Sita in the city of Mithila.  The wife of the Pandavas, Draupadi, was like a manifestation of Your shadow.  It was You who was kidnapped by Ravan in the form of Sita, and You are the wife of Lord Ram.”

In this verse, Shree Krishna mentions that great souls take shelter of the divine energy of God.  The reason is that divine grace, knowledge, love, etc. are all God’s divine energies, and are all subservient to the divine Yogmaya energy, which is Radha.  Hence, by the grace of Yogmaya, one receives the love, knowledge, and grace of God.  Great souls, who receive divine grace, become endowed with divine love, and engage in uninterrupted devotion toward God.