Hajj is the commandment of ALLAH Azzawajal, which is ordered in Quran., All capable muslims should do Hajj once in their life time., it is the Annual gathering of the Whole Muslim Ummah. All muslims from around the world gather at one place and know about each other., promote the universal brotherhood., forgetting the geographical borders of the man made world., Gathering and Chanting the praise of ALLAH Lord of the Worlds., Bowing their Heads before HIM ., Standing in a single line without the discrimination of rich or poor, black or white , tall or short.

ALLAH wants to see all his servants in single uniform that is "Ihram" a White Stitchless Cloth - which is used for wrapping the Dead Bodies., thus remembering everybody's death, and life after death, Which is never ending if one had been good practicing pious muslim would enter Jannah "Gardens of Paradise" live there for ever, or if one had been bad and led the life with ones own whims and fancies would enter Jahannam "Fire of Hell" get punishment forever.