To become one with God means
Other Books by Srila Prabhupada
Light of the Bhagavata
Becoming one with God does not always indicate that a living being merges into the existence of the Lord. To become one with God means to attain one's original, spiritual quality. Unless one attains one's spiritual quality one cannot enter into the kingdom of God. The members of the impersonalist school explain their idea of oneness by the example of the mixing of river water with the seawater. But we should know that within the water of the sea there are living beings, who do not merge into the existence of water but keep their separate identities and enjoy life within the water. They are one with the water in the sense that they have attained the quality of living within the water. Similarly, the spiritual world is not without its separate paraphernalia. A living being can keep his separate spiritual identity in the spiritual kingdom and enjoy life with the supreme spiritual being, the Personality of Godhead.
In Vṛndāvana all the spiritual entities—the cowherd boys, the cow maids, the forest, the trees, the hills, the water, the fruits, the cows, and all others—enjoy life spiritually in association with the Lord, Śrī Kṛṣṇa. They are simultaneously one with and different from the Lord. But ultimately they are one in different varieties.