June 27,2013.Day 239 . BHAGAVAD GITA - As It Is.Original by His Divine Grace Srila Prabhupada. Chapter 6.TEXT :15

Chapter 6. Sankhya-yoga

TEXT 15

yunjann evam sadatmanam
yogi niyata-manasah
santim nirvana-paramam
mat-samstham adhigacchati

SYNONYMS

yunjan--practicing like this; evam--as mentioned above; sada--constantly; atmanam--body, mind and soul; yogi--the mystic transcendentalist; niyata-manasah--regulated mind; santim--peace;nirvana-paramam--cessation of material existence; mat-samstham--in the spiritual sky (the kingdom of God); adhigacchati--does attain.

TRANSLATION

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

PURPORT

The ultimate goal in practicing yoga is now clearly explained. Yogapractice 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 yogi according toBhagavad-gita. 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-gita as that place where there is no need of sun, moon or 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 param dhama, or superior abodes. 
A consummate yogi, who is perfect in understanding Lord Krsna, as is clearly stated herein (mat-cittah, mat-parah, mat-sthanam) by the Lord Himself, can attain real peace and can ultimately reach His supreme abode, the Krsna-loka, known as Goloka Vrndavana. In the Brahma-samhita it is clearly stated, (goloka eva nivasaty akhilatma-bhutah) that the Lord, although residing always in His abode called Goloka, is the all-pervading Brahman and the localized Paramatma as well by dint of His superior spiritual energies. No one can reach the spiritual sky or enter into the eternal abode (Vaikuntha Goloka Vrndavana) of the Lord without the proper understanding of Krsna and His plenary expansion Visnu. Therefore a person working in Krsna consciousness is the perfect yogi,because his mind is always absorbed in Krsna's activities. Sa vai manah krsna-padaravindayoh. In the Vedas also we learn, tam eva viditvati mrtyum eti: "One can overcome the path of birth and death only by understanding the Supreme Personality of Godhead, Krsna." 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.