Ramadan Day 20:

The original meaning of i’tikāf was not just restricted to this. It meant to devote oneself and focus oneself on something to the exclusion of everything else. Ramadan is a form of iʿtikāf for the entire month. We should treat the whole of Ramadan as a spiritual retreat where we devote ourselves to, and focus on, the ibadah of Allah to the exclusion of everything else.