If REFRESH will do the task of REWIND !! Why do we have REWIND option ?

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As per my  understanding if REFRESH will do the task of REWIND.

Task : "you can choose to refresh the VDB from a snapshot or a specific point in time." 

https://docs.delphix.com/display/DOCS40/Refreshing+a+VDB

Why do we need REWIND option ?
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K J M RAO

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Posted 3 years ago

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Scott MacDonald, Staff Engineer

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Rewind and Refresh are different operations:

REWIND: Go back to a previous point in the lifetime for that VDB.

REFRESH: Recreate a VDB from a point in time of the parent dSource.

When you provision a VDB, you are creating a new timeline (or branch). The difference between the operations is which timeline you use to re-provision a VDB, either the VDB's history (Rewind) or the dSource/parent's (Refresh).

Hope that helps,

Scott.
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Adam Bowen, Official Rep

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Rao, that is not contradictory. 

Rewind: Go back to any point (snapshot or point in time) in time on the same time line for that VDB. ex. Restoring your current database using flashback.
Refresh: Replace the current data in your VDB with the data from any point (snapshot or point in time) in time from another database.  ex Dropping all the data from your current database and restoring it from a backup of another database.

Does this make sense?