Allah Almighty Says: (Verily, the first House (of worship) appointed for mankind was that at Bakkah (Makkah), full of blessing, and a guidance for Al-'Alamin (the mankind and jinns)* In it are manifest signs (for example), the Maqam (place) of Ibrahim (Abraham); whosoever enters it, he attains security. And Hajj to the House (Ka'bah) is a duty that mankind owes to Allah, those who can afford the expenses and whoever denies Hajj  then Allah stands not in need of any of the 'Alamin.) {Sûrat Al-Imrân-verse96-97}.

Hajj includes all worship, in it there is Monotheism, prayer, fasting ,Zakat, good behavior, supplication(center of worship) , patience, contemplation, thinking in the creation of Allah , Jihad by the soul , spending money, Humility , purity and charity.

Human is doing all of that while he or she is directed to Allah by a sincere heart.