This is not true. It is even irrational as you indicated. The information about this crack is available only in some shi`i sources. So, please do not think about the issue and keep yourself busy with acquiring as much knowledge as you can from the Qur’an and the Sunnah of the Prophet (peace and blessings be upon him). Think about the Muslim Ummah and its problems and your role to solve or at least help in solving them.
A Crack in the Ka`bah
Did you like this content?
Recommended
Defending Jerusalem: A Sacred Duty for Muslims Worldwide
Introducing the Prophet to Non-Muslims on His Birthday
Tips to Benefit from Our Reading of the Qur’an
The Tragedy of Al-Aqsa Mosque: Its Significance and Muslims’ Duty to Protect It
How to Introduce Islam to Non-Muslims
How to Read the Qur’an?
Divorce of the angry person who gives all three divorce at once
Facts about the Second Coming of Jesus
Du`aa’ While Performing Tawaf
The Difference between Rukn and Fard
Top Reading