Why is the act of nature described as ‘precise’?

Act of nature in the poem is described as precise or accurate because after every certain interval of time nature tries to neutralise the every condition with precision. As in the poem first, we had seen about honouring of someone’s desire and then long lasting quarrels between the Hindu, Muslims, and Christians all these things are solved up with time by the nature as in the end nature shows the meaning of the title of poem “Time and Time Again”.