Cleaner and/or Sealer Glaze vs Polising??

So is there any difference or benefit to doing a cleaner followed by a sealer/glaze as opposed to using a straight up polish like M205?

Obvioulsy the 205 is some pretty good stuff and is most definitely LSP ready. But for that spring cleaning job, if you're gonna clay & correct, there's really no reason to clean and seal/glaze is there?

 

glaze is basically a filler, and will wash off in a couple washes, and swirls will come back. Paint polish (M205)bwill remove imperfections. Hope this helps...