Expression: "...a total unity"

[Tom]

Hi

Do you find the use of "a" natural and correct in the following use?

There was a total unity among the students at that time.

Tom

[Alan]

Hi Tom,

By using 'a' in this expression you emphasize that it was 'a unity' in contrast to perhaps 'a discord'. Omitting the 'a' makes simply the statement that they all agreed.

Alan
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