Answer 1
Dr. Zakir Naik in his book 'Answer to non-Muslims common questions' reply to this question as;
Kaaba is the Qibla i.e. the direction Muslims face during their prayers. It is important to note that though Muslims face the Kaaba during prayers, they do not worship the Kaaba. Muslims worship and bow to none but Allah.
It is mentioned in Surah Baqarah:
"We see the turning of thy face (for guidance) to the heavens: now shall We turn thee to a Qiblah that shall please thee. Turn then thy face in the direction of the Sacred Mosque: wherever ye are, turn your faces in that direction." [Al-Qur'an 2:144]
1. Islam believes in fostering unity
For instance, if Muslims want to offer Salaah (Prayer), it is possible that some may wish to face north, while some may wish to face south. In order to unite Muslims in their worship of the One True God, Muslims, wherever they may be, are asked to face in only one direction i.e. towards the Kaaba. If some Muslims live towards the west of the Kaaba they face the east. Similarly if they live towards the east of the Kaaba they face the west.
2. Kaaba is at the Centre of the World Map
The Muslims were the first people to draw the map of the world. They drew the map with the south facing upwards and north downwards. The Kaaba was at the centre. Later, western cartographers drew the map upside down with the north facing upwards and south downwards. Yet, Alhamdullilah the Kaaba is at the centre of the world map.
3. Tawaf around Kaaba for indicating one God
When the Muslims go to Masjid-e-Haram in Makkah, they perform tawaf or circumambulation round the Kaaba. This act symbolizes the belief and worship of One God, since, just as every circle has one centre, so also there is only one Allah (swt) worthy of worship.
4. Hadith of Umar (may Allah be pleased with him)
Regarding the black stone, hajr-e-aswad, there is a hadith (tradition), attributed to the illustrious companion of the Prophet Muhammed (pbuh), Umar (may Allah be pleased with him).
According to Sahih Bukhari, Volume 2, book of Hajj, chapter 56, H.No. 675. Umar (may Allah be pleased with him) said, "I know that you are a stone and can neither benefit nor harm. Had I not seen the Prophet (pbuh) touching (and
kissing) you, I would never have touched (and kissed) you".
5. People stood on Kaaba and gave the adhaan
At the time of the Prophet, people even stood on the Kaaba and gave the 'adhaan' or the call to prayer. One may ask those who allege that Muslims worship the Kaaba; which idol worshipper stands on the idol he worships?
_________________________________________________________________Answer 2
Muslims don't worship Ka'aba or any thing else except Allah (God in English); the one and only one God with no partner, no son, no associate, and no companion.
Muslims pay honor and respect to Ka'aba as the most sacred religious place.
Ka'aba is direction Muslims face when they offer their prayers. Though Muslims face they Ka'aba; they do not worship Ka'aba. This direction is appointed by Allah.
Thus, We have appointed you an Ummat (nation) justly balanced, that ye might be witnesses over the nations, and the Messenger a witness over yourselves; and We appointed the Qibla (direction) to which thou wast used, only to test those who followed the Messenger from those who would turn on their heels (From the Faith). Indeed it was (A change) momentous, except to those guided by Allah. And never would Allah Make your faith of no effect. For Allah is to all people Most surely full of kindness, Most Merciful. (Quran 002.143)
(It is clear in Quran that there is one and only Allah (God); the word "we" is used for royal figure in some languages. It indicates high status and dignity.)
Muslims worship one and only God. Muslims throughout the world face Ka'aba during prayer; this unites them in their worship to Allah.
So from whencesoever Thou startest forth, turn Thy face in the direction of the sacred Mosque; and wheresoever ye are, Turn your face thither: that there be no ground of dispute against you among the people, except those of them that are bent on wickedness; so fear them not, but fear Me; and that I may complete My favours on you, and ye May (consent to) be guided. (Quran 002.150)
During the Hajj, pilgrims stone Satan.
Hajr i Aswad.
No, you do not have to go bald before performing Hajj. It is a common practice for male pilgrims to shave their heads as a symbol of humility and renewal during Hajj, but it is not a requirement.
KAaba
Apart from performing Hajj at Mecca, the Muslim Hajis are supposed to visit Madina Munawara.
No, it is not mandatory to shave the head after performing Hajj. It is a recommended practice, but not required.
During Hajj, Muslims perform Tawaf, which involves circumambulating the Kaaba, seven times in total. This is done twice during the pilgrimage: first as part of the Umrah (which can be performed at the beginning of Hajj) and again as part of the Hajj rituals. Each circuit is made in a counterclockwise direction, starting from the Black Stone. Tawaf is a significant act of worship and devotion for pilgrims.
Talbi ,labik Allah huma labek
I am going to Hajj. I will go to Hajj next year. My aunt is back from Hajj. Performing Hajj is a good deed.
Performing Hajj is obligatory once in lifetime on each Muslim.
Two white untailored sheets of cloth are required to put on during Hajj and Umrah. But after completing Umrah or hajj, the pilgrims put on routine clothes while performing Tawaf and saying prayers.
Gents/men put on two untailored sheets of white cloth called Ahraam while performing Umrah or Hajj. They,however, put off Ahraam after performing Umrah and Hajj. They may put on normal every day dress during their stay at Makka Mukarma and can perorm Tawaf.