Having thus spoken to Nidāgha, the Brāhmaṇa Ṛbhu went away, leaving his disciple profoundly impressed, by his instructions, with belief in unity. He beheld all beings thenceforth as the same with himself and, perfect in holy knowledge, obtained final liberation. “In like manner do you, oh king, who knows what duty is, regarding equally friend or foe, consider yourself as one with all that exists in the world. Even as the same sky is apparently diversified as white or blue, so Soul which is in truth but one, appears to erroneous vision distinct in different persons." (Vishnu Purana, Book 2, Chapter 16)
The above passage, seems to show that the plurality of all Jivas is unreal and that all Jivatmas are in essential, one Atman in reality.
This more or less seems to be in agreement with Advaita Vedanta and direct contradiction with Vishishtadvaita Vedanta, which states that all Jivas are not one, but multiple (atleast superficially).
So my question is how do Vishishtadvaitins interpret this passage? How do they show the above passage does not indicate oneness of Jivatmas?