Lessons of Tawheed only found in the Lands of Islaam and Muslims.
I was riding in a micro-bus on my way to work here in Cairo, Egypt, when we passed by an accident site which involved another micro-bus and a smaller car. Our micro-bus driver pulled over and rushed to the scene, al-hamdulillah. But it was the speech of an older man sitting in front of me, whose clothing was very worn and dirty that was very valuable. He said, these micro-bus drivers drive their vans in and out of traffic in crazy like manner. Weaving in and out with no concerns. Rushing and speeding to make money, not knowing that Ar-Razzaaq has already written their Rizq (provisions) for them. He continued by saying, rushing and haste will not quicken the attainment of Rizq. Their Rizq is Maktoob (written) for them by Ar-Razzaaq. He then repeated this statement, their Rizq is Maktoob for them by Ar-Razzaaq.
Shaykh Hasan Abdul-Wahhaab Marzouq Al-Bannaa (may Allah preserve him and his family upon good), once said to me, that which separates the Muslim from the non-Muslim is Tawheed. The Muslim is the flag carrier of Tawheed. This what separates us from the non-Muslims.
Aboo Abdir-Rahmaan Abdur-Raqeeb