Another meaning of guṇa is rope; it is to be understood that the conditioned soul is tightly tied by the ropes of illusion. A man bound by the hands and feet cannot free himself-he must be helped by a person who is unbound. Because the bound cannot help the bound, the rescuer must be liberated. Therefore, only Lord Kṛṣṇa, or His bona-fide representative the spiritual master, can release the conditioned soul. Without such superior help, one cannot be freed from the bondage of material nature. Devotional service, or Kṛṣṇa consciousness, can help one gain such release. Kṛṣṇa, being the Lord of illusory energy, can order this insurmountable energy to release the conditioned soul. He orders this release out of His causeless mercy on the surrendered soul and out of His paternal affection for the living entity who is originally a beloved son of the Lord. Therefore surrender unto the lotus feet of the Lord is the only means to get free from the clutches of the stringent material nature.
The words mām eva are also significant. Mām means unto Kṛṣṇa (Viṣṇu) only, and not Brahmā or Śiva. Although Brahmā and Śiva are greatly elevated and are almost on the level of Viṣṇu, it is not possible for such incarnations of rājo-guṇa (passion) and tamo-guṇa (ignorance) to release the conditioned soul from the clutches of māyā. In other words, both Brahmā and Śiva are also under the influence of māyā. Only Viṣṇu is the master of māyā; therefore He can alone give release to the conditioned soul. The Vedas confirm this in the phrase tvam eva viditvā or “Freedom is possible only by understanding Kṛṣṇa.” Even Lord Śiva affirms that liberation can be achieved only by the mercy of Viṣṇu. Lord Śiva says:
mukti-pradātā sarveṣāṁ viṣṇur eva na saṁśayaḥ.
“There is no doubt that Viṣṇu is the deliverer of liberation for everyone.
Ref >> Srila Prabhupada Vani.