Why did heraclitus says that nature is an open mystery? what did he mean by that?

Heraclitus repeatedly uses the "open mystery" formula to determine nature and to characterize the dialectics of explicit and implicit.

Nature is a unity of contradictions, which are, firstly, the contradictions of nature itself, being itself, and secondly, the contradictions of knowledge. Nature and human knowledge are in a deep relationship, which can be understood through vision - this is the correspondence of the visible and the seeing, light (sun) and eye.

Explanation:

the jewellery thief was as cunning as a fox.

explanation:

"as cunning as a fox" is the simile, because it compares two things using the words "like" or "as" to do it.