I'm struggling to find a reason/meaning behind saying 'עושה השלום' with a 'ה' at the end of amidah and during kaddish for the yamim nora'im period.
I have heard (unverified source) that there is opposition to this practice since it is based on a pasuk, and it is not necessarily desirable to change pesukim.
What is the reason (for those that say it) that עושה השלום is said?