Assalam alaikum,
As you are aware, Tauheed ( that knowledge/belief in the Oneness of Allah, our Creator and Cherisher of the Universe ) is one of the 5 pillars upon which Islam is built, the other 4 being:--Five daily prayers, Zakkat, Fasting during the month of Ramadan and the Hajj. Tauheed also embraces the belief that Allah Alone is the One worthy of worship in the way and manner shown/taught to us by His Messengers, the last of whom is Sayyidina Muhammad, the Messenger of Allah,
. We also believe that Allah has Pure Names and Attributes that transcend anything we can imagine.
For our Tauheed to be sound/meaningful, we must MIND/OBSERVE the following essentials, namely:--
1. To keep obligations in accordance with the Holy Qur'an and the Sunnah.
2. To keep the heart free from hatred.
3. To always speak the Truth.
4. To avoid forbidden food.
5. To shun innovations in religion, and
6. To be satisfied with Allah Most High in scarcity and plenty, and turn to Him in happiness or affliction.