Verse of the Day : Bhagavad-gita As It Is--6.15

*Please write answers to the questions in comments*

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TRANSLATION

Thus practicing control of the body, mind and activities, the mystic transcendentalist attains to the kingdom of God [or the abode of K???a] by cessation of material existence.

PURPORT

The ultimate goal in practicing yoga is now clearly explained. Yoga practice is not meant for attaining any kind of material facility; it is to enable the cessation of all material existence. One who seeks an improvement in health or aspires after material perfection is no yogī according to Bhagavad-gītā. Nor does cessation of material existence entail one's entering into "the void," which is only a myth. There is no void anywhere within the creation of the Lord. Rather, the cessation of material existence enables one to enter into the spiritual sky, the abode of the Lord. The abode of the Lord is also clearly described in the Bhagavad-gītā as that place where there is no need of sun, moon, nor electricity. All the planets in the spiritual kingdom are self-illuminated like the sun in the material sky. The kingdom of God is everywhere, but the spiritual sky and the planets thereof are called para? dhāma, or superior abodes.

A consummate yogī, who is perfect in understanding Lord K???a, as is clearly stated herein (mat-citta?, mat-para?, mat-sthānam) by the Lord Himself, can attain real peace and can ultimately reach His supreme abode, the K???a-loka known as Goloka V?ndāvana. In the Brahma-sa?hitā it is clearly stated (goloka eva nivasaty akhilātma-bhūta?) that the Lord, although residing always in His abode called Goloka, is the all-pervading Brahman and the localized Paramātmā as well by dint of His superior spiritual energies. No one can reach the spiritual sky or enter into the eternal abode (Vaiku??ha Goloka V?ndāvana) of the Lord without the proper understanding of K???a and His plenary expansion Vi??u. Therefore a person working in K???a consciousness is the perfect yogī, because his mind is always absorbed in K???a's activities. Sa vai mana? k???a-padāravindayo?. In the Vedas also we learn: tam eva viditvātim?tyum eti: "One can overcome the path of birth and death only by understanding the Supreme Personality of Godhead, K???a." In other words, perfection of the yoga system is the attainment of freedom from material existence and not some magical jugglery or gymnastic feats to befool innocent people.

Question 1 : What is the real aim of Yoga practice ?

Question 2 : What descriptions of the spiritual world is given in this verse ?