We can sit in a place that is not clean because we are sinners, but Angels cannot sit in a place that is dirty. Allah promised His servants, if you sit remembering Me, then Angels will come to that place. Allah will also remember you in a better gathering and a better place. That means that Allah will change that place you are sitting into a heavenly place – otherwise Angels cannot sit there.
So for sure, Circles of Dhikr are important as it allows us to enter Paradise. And when Allah Almighty gives something, He will not take it away.
Recounted by Mawlana Shaykh Hisham.