Re: saudia arab
Peace suhaina,
Allah SWT hum sb ko Umrah or Hajj ki sa’adt naseeb farmain Ameen.
The reason is that the pilgrims would like to offer complete ritual of Umrah/Hajj. They walk around the Ka’aba or in Masjid-e-Nabwi to saturate their eyes from it (who knows that they’ll visit such place again or not). They come/go due to any reason i.e. to drink water/zumzum and/or refreshing ablution (zumzum is only available in Makkah and they know once they left won’t get it again). They talk to others if they have any question like if they are doing Umrah/Hajj’s rituals correctly or what ritual they should do next or to know about some points (places) like Hijre-aswad, Muqam-e-Multazim, Muqam-e-Ibrahim or from which gate they entered? those who walk between the namaaz are newely arrived and they can offer two rakat instead of four and lastly the traweeh, which is sunnah that can be read later on.