Gita Chapter 7.21 to 7.25

Yo yo yaam yaam tanum bhaktah shraddhayaarchitum icchati;
Tasya tasyaachalaam shraddhaam taameva vidadhaamyaham.
21. Whatsoever form any devotee desires to worship with faith—that (same) faith of his I make firm and unflinching.

Sa tayaa shraddhayaa yuktastasyaaraadhanameehate;
Labhate cha tatah kaamaan mayaiva vihitaan hi taan.
22. Endowed with that faith, he engages in the worship of that (form), and from it he obtains his desire, these being verily ordained by Me (alone).

Antavattu phalam teshaam tadbhavatyalpamedhasaam;
Devaan devayajo yaanti madbhaktaa yaanti maamapi.
23. Verily the reward (fruit) that accrues to those men of small intelligence is finite. The worshippers of the gods go to them, but My devotees come to Me.

Avyaktam vyaktimaapannam manyante maamabuddhayah;
Param bhaavamajaananto mamaavyayamanuttamam.
24. The foolish think of Me, the Unmanifest, as having manifestation, knowing not My higher, immutable and most excellent nature.

Naaham prakaashah sarvasya yogamaayaasamaavritah;
Moodho’yam naabhijaanaati loko maamajamavyayam.
25. I am not manifest to all (as I am), being veiled by the Yoga Maya. This deluded world does not know Me, the unborn and imperishable.

THE YOGA OF WISDOM AND REALISATION

Summary of Seventh Discourse

Sri Krishna tells Arjuna that the supreme Godhead has to be realised in both its transcendent and immanent aspects. The Yogi who has reached this summit has nothing more to know. This complete union with the Lord is difficult of attainment. Among many thousands of human beings, very few aspire for this union, and even among those who aspire for it, few ever reach the pinnacle of spiritual realisation.
The Lord has already given a clear description of the all-pervading static and infinite state of His. Now He proceeds to explain His manifestations as the universe and the power behind it. He speaks of these manifestations as His lower and higher Prakritis. The lower Prakriti is made up of the five elements, mind, ego and intellect. The higher Prakriti is the life-element which upholds the universe, activates it and causes its appearance and final dissolution.
Krishna says that whatever exists is nothing but Himself. He is the cause of the appearance of the universe and all things in it. Everything is strung on Him like clusters of gems on a string. He is the essence, substance and substratum of everything, whether visible or invisible. Although everything is in Him, yet He transcends everything as the actionless Self. Prakriti or Nature is made up of the three Gunas or qualities—Sattwa, Rajas and Tamas. These three qualities delude the soul and make it forget its true nature, which is one with God. This delusion, termed Maya, can only be removed by the Grace of the Lord Himself.
Thus far Arjuna has been taught the highest form of devotion, which leads to union with God in His static aspect as also with His dynamic Prakriti. Krishna tells him that there are also other forms of devotion which are inferior as they are performed with various motives. The distressed, the seeker of divine wisdom, and he who desires wealth, worship Him, as also the wise. Of these the Lord deems the wise as dearest to Him. Such a devotee loves the Lord for the sake of pure love alone. Whatever form the devotee worships, the ultimate goal is the Lord Himself. The Lord accepts such worship, knowing that it is directed to Him only.

Gita Chapter 4.06 to 4.10

Ajo’pi sannavyayaatmaa bhootaanaam eeshwaro’pi san;
Prakritim swaam adhishthaaya sambhavaamyaatmamaayayaa.
6. Though I am unborn and of imperishable nature, and though I am the Lord of all beings, yet, ruling over My own Nature, I am born by My own Maya.

Yadaa yadaa hi dharmasya glaanir bhavati bhaarata;
Abhyutthaanam adharmasya tadaatmaanam srijaamyaham.
7. Whenever there is a decline of righteousness, O Arjuna, and rise of unrighteousness, then I manifest Myself!
COMMENTARY: That which elevates a man and helps him to reach the goal of life and attain knowledge is Dharma (righteousness); that which drags him into worldliness is unrighteousness. That which helps a man to attain liberation is Dharma; that which makes him irreligious is Adharma or unrighteousness.

Paritraanaaya saadhoonaam vinaashaaya cha dushkritaam;
Dharma samsthaapanaarthaaya sambhavaami yuge yuge.
8. For the protection of the good, for the destruction of the wicked, and for the establishment of righteousness, I am born in every age.

Janma karma cha me divyam evam yo vetti tattwatah;
Tyaktwa deham punarjanma naiti maameti so’rjuna.
9. He who thus knows in true light My divine birth and action, after having abandoned the body is not born again; he comes to Me, O Arjuna!

Veetaraagabhayakrodhaa manmayaa maam upaashritaah;
Bahavo jnaana tapasaa pootaa madbhaavam aagataah.
10. Freed from attachment, fear and anger, absorbed in Me, taking refuge in Me, purified by the fire of knowledge, many have attained to My Being.