After this, while uttering Talbiyah, move forward to perform Tawaf of Ka'bah.
Tawaf means circling around something . Here it means moving around Ka'bah seven times with extreme love and devotion.
The literal meaning of Sa'ey is to run or to make effort, but as a Umrah term, Sa'ey denotes walking back and forth seven times between the hills of Safa and Marwah which are situated to the south and north of the Ka'bah respectively. Now there are only signs of these hills and the whole route between them is enclosed in a long gallery.
Sa'ey has a historical background. Prophet Abraham left his wife Hazrat Hajra and infant son Hazrat Ismael in the wilderness of Makkah at the command of Allah. The mother and son lived for five days on the food and water they had when the water was completely finished. The mother ran frantically seven times between the hills of Safa and Marwah in search of water for her son. Suddenly the fountain of Zamzam oozed miraculously near the feet of Hazrat Ismael. Sa'ey is included in the rites of Umrah to commemorate this event of search and struggle.
You may perform Umrah as often as you want according to the above procedure. And if you want to perform just a nafl Tawaf, follow the same procedure, however, in a nafl Tawaf there is no Ihram, no Ramal, no Iztaba and even no Sa'ey.