Yogis are generally attracted to the by-products of mystic yogic power, for they can become smaller than the smallest or greater than the greatest, achieve anything they desire, have power even to create a planet, or bring anyone they like under their subjection. Yogis who have incomplete information of the result of devotional service are attracted by these powers, but these powers are material; they have nothing to do with spiritual progress. As other material powers are created by the material energy, mystic yogic powers are also material. A perfect yogis mind is not attracted by any material power, but is simply attracted by unalloyed service to the Supreme Lord. For a devotee, the process of merging into the Brahman effulgence is considered to be hellish, and yogic power or the preliminary perfection of yogic power, to be able to control the senses, is automatically achieved. As for elevation to higher planets, a devotee considers this to be simply hallucinatory. A devotees attention is concentrated only upon the eternal loving service of the Lord, and therefore the power of death has no influence over him. In such a devotional state, a perfect yogi can attain the status of immortal knowledge and bliss.