Paired T Test has low P value but high deviation

I have 6 pair data as follow, using Paired T-Test it results in 3.5081 P-value 0.017 , Standard deviation 0.16
How we can conclude this result? why high standard deviation have a significant p-value?

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Ambassador to the humans
I think that 3.5 value is your t-statistic. Is that what you thought the standard deviation was?