"mOha" the delusion

mOha or delusion is the direct implication of desire (kaama)

desire has no utility in the "process of action" and attaining the "result of action".
Let me explain the process of action cycle (samsara)

manas, buddhi, ahamkaaram and chittam are the four quarters of the internal instrument.
The five sense organs and five action organs are the external instruments; A place where all these instruments gets involved in their action is called "body" or the field of action or city (pura). The observer (saakshi) of all this action is the "purusha" the king/owner of the city.
So, all the city is built with five elements and three qualities. manas is built with illuminating nature of the five elements, indriyas are build with the "active" nature of five elements, respective sense objects are built with the "inert" nature of five elements making up the "prapancha". Individual divisions are created by ahamkaaram between all these things (an ear can only capture the sound and an eye can only capture the light and shape of a thing due to ahamkaara) and overall direction (or the judgement of what is good and what is not) is given by buddhi. These five elements + manas + buddhi + ahamkaaram are covered within the wrapper of "chittam". This overall package along with its enjoyer "purusha" who is a witness is called "kshetram" or kurukshetra or the field of action.

This field of action (or let us say workshop) only sustained by the WORK. Without WORK this field of ACTION has no purpose and can't be sustained.

Every being within the prapancha has equal right to work and enjoy the fruit thereof. This is the divine rule ordained by the LORD (iswara) of this gross prapancha.

So, doing right work leads to right result.

Everyone always "desires" favorable results. But without the right WORK, the result can never be achieved. As the intensity of desire increases, the manas gets trapped in a very dangerous trap called krodha - anger and frustration. This anger/frustration leads to delusion. Delusion leads to vibrations in the smriti (the most subtle vritti of chittam) This vibration in the core of the internal instrument causes the buddhi (or the direction of ultimate goal/ultimate good i.e., the judgment) to be lost. Once the buddhi (judgement of good and bad) is lost, the person falls into the loop of causing the "harm" to the workshop by mis-using it.

This unintended harm to the workshop (kshetra - the body and its environment or nature or prakriti) is called "pramada". (pramada means dangerous, careless or hurried action!)

Once some part of this workshop is damaged, it causes more work to fix (re-construct) the workshop. That leads to more delay in attaining the result. That leads to more frustration. That causes more damage to the workshop. This leads to never ending cycle of causing the harm to one's own well being and recovering from the damage. This cycle is called birth and death cycle or SAMSAARA.

That is the reason "intense desire" or "trustna" need to be conquered first to master the cycle of life and death. Desire is the lone single cause that leads to the mis-judgement of what is right and what is wrong. (leading to ADHARMA - breaching the divine "dharma" of the lord!)

Instruction 7: (The First verse of Adi Sankaracharya's moha mudgara stotram)

मूढ! जहीहि धनागम तृष्णां कुरु सद्भुद्धिम् मनसि वितृष्णाम् |
यल्लभसे निजकर्मोपात्तं वित्तं तेन विनोदय चित्तं ||

भज गोविंदं भज गोविंदं गोविंदं भज मूढमते
संप्राप्ते सन्निहिते काले नहि नहि रक्षति डुकृञ्करणे

mūdha! jahīhi dhanāgama trshnām kuru sadbhuddhim manasi vitrstnām
yallabhasē nijakarmōpāttam vittam tēna vinōdaya cittam

bhaja gōvindam bhaja gōvindam gōvindam bhaja mūdhamatē
samprāptē sannihitē kālē nahi nahi rakshati dukruñkaranē

O deluded one, kill the trushna (intense desire) to amass a lot of wealth. Try to bring the manas out of the control of this trushna. Satisfy your mind with the money that naturally comes to you by doing your own WORK skillfully!

Pray to lord GOVINDA, pray to lord GOVINDA! O deluded mind! When it comes to death, no materialistic skill (that was acquired by manas) will save you! (that which saves one from the ultimate damage to the body is called devotion, faith that are of "buddhi")

om tat sat