Ans) The noble Sufis hold great reverence for seclusion (i'tikaf). Some observe seclusion for forty days, while others choose three-day periods for seclusion. Some consider secluding themselves during the last ten days of Ramadan to be sufficient. There are three types of seclusion:

Specified seclusion, which is commonly known and practiced by the general public.
Continuous seclusion, where individuals remain in seclusion at all times.
Heart seclusion, where the people of the heart seclude themselves within their own hearts. In other words, they focus their hearts on seclusion.