“While speaking about the nature of man, Qur’an uses words like nafs, ruh, Qalb etc. Spirit is transcendent and the center of man’s being. Whereas soul (nafs), in its downward or corporeal tendency, is attached to the body and in its upward or spiritual tendency, is attached to the spirit (al-ruh).
In order to understand the Islamic concept of human psyche and nature, one must understand these terms and their relationship to each other. These basic terms are explained here.
Nafs and its levels :
Nafs (pl. Anfus or Nufus) lexically means soul, the psyche, the ego, self, life, person, heart or mind. Tajul Uroos writes that this word is used normally to denote the total personality of a person. It also means knowledge and intellect. (Taj: Ibn-i-Faris). It is used for a person as well. It is further used to express greatness, superiority, courage, resolution, and punishment. (Taj and Lisanul Arab).
The term Nafs has different uses in the Holy Qur’an as well, and in most cases, it means the human being in reality, his self and his person. (see 3: 61; 12:54) It also means the human soul (see 6:93; 50:16 etc.)
The nafs is a basic element in the cosmology of existence. Al-Ghazali mentions the two dimensions of al-nafs: the upward dimension and the downward dimension. The upward dimension is the uppermost limit of psyche which connects it the spirit, whereas the downward dimension is represented by the sensory faculties which connect it to the body.
According to the Sufi understanding, nafs is the source the negative power of anger and sexual appetite in a human being which blinds his intellect. Sufis take "nafs" as the comprehensive word for all the evil attributes of a person. That is why they emphasize on doing battle with it and to break and inactivate it as it is referred to in the Hadith of the Holy Prophet (PBUH):
“Your worst enemy is your nafs which lies between your sides.”
The nafs needs to be nourished and developed in the Divine guidance. The nafs starts its career in an undeveloped form but equipped with immense potentialities of corruption as well as the development and getting closer to the Most Perfect Self, Allah (SWT), Whose attributes serve as an objective standard for the human self.
Although some scholars have classified the Nafs up to 7 stages, the Qur'an has described 3 main types of nafs which are:
Nafs ammarah bi al-su’, (the self urging evil)
This nafs surrenders itself to lusts and allows itself to be seduced by the devil. This is the raw self of an untrained person. Al-Nafs al-Ammarah has Shaytan as its ally who falsely promises him great rewards and gains and always invites him and attracts the soul to do evil. He presents falsehood to him in a form that he accepts and admires it.
By its very nature, Al-Nafs al-Ammarah directs its owner towards every wrong action. Allah says:
“Surely the human self urges evil.” (12:53)
Al-Nafs al-Ammara paralyzes the cognitive process of human being. Describing this fatal effect of Al-Nafs al-Ammarah, the Holy Qur’an says:
“They have hearts wherewith they do not understand; have eyes wherewith they do not see; have ears wherewith they do not hear. These are like cattle – no, but they are worse! These are the neglectful.” (7-179)
Al-Ghazali has mentioned the following negative tendencies of this nafs naming them with ‘spiritual diseases’:
Nifaq (hypocrisy)
Pride and arrogance
Hawa or desire
Self-beholding
Greediness
Negligence
Restlessness
Ri’a
These are the most harmful tendencies of al-nafs and greatest barriers to the growth of man. When these dominate the self, man loses his insight and his total energies are diverted towards unnecessary activities. As a result, he starts believing deception as truth, fiction as reality and self-glorification as his highest goal in life.
Nafs al-lawwama, (the blaming self)
The second level of nafs is nafs al-lawwama, the blameworthy self which blames its owner for his own shortcomings. At this level, nafs is in a state of constant awareness, self-observation and self-criticism. It recognises his shortcomings, his wrong actions, his disobedience and the neglect of his duties. It is referred to it in Sura Al-Qiyamah when Allah says:
"And I do call to witness the Nafs that blames" (75:2).
Nafs al-lawwama is the one which cannot rest in one state. It often changes and alters, remembers and forgets, submits and withdraws, loves and hates, rejoices and becomes sad, accepts and rejects, obeys and rebels. Actually nafs, at this stage, is in the mid of its journey towards its growth and perfection.
Nafs al-mutma'inna, (the Self at Peace)
Nafs al-mutma'inna is the third and the highest stage of nafs. A person when advanced to this stage, he achieves full rest and satisfaction while his personality gets equipped with the qualities of quietness, mildness, tolerance, forgiveness, and understanding of all beings. This stage of nafs ultimately leads to resolution of one’s inner conflicts and attainment of harmony with God. His personality is now dyed with His universal Colour while his behavior reflects the Absolute being and the Ultimate Reality. (Haq, Manzurul. (1984). Concept of personality development in the light of Islamic thoughts. The Bangladesh journal of Psychology, 7, 118-128.) (An abridged quotation)
This is the soul to whom it is said at the time of death:
“O soul at peace, return to your Lord, well pleased and well-pleasing. Enter with My servants, enter into My Garden.” (89:27-30)
Al-Qatadah says abut this stage of nafs: "It is the soul of the believer, made calm by what Allah has promised. Its owner is at rest and content with his knowledge of Allah's Names and Attributes, and with what He has said about Himself and His Messenger (PBUH), and with what He has said about the Hereafter…. So much so that a believer can almost see them with his own eyes. So he submits to the will of Allah and surrenders to Him contentedly, never dissatisfied or complaining, and with his faith never wavering. He does not rejoice at his gains, nor do his sufferings make him despair." (Al-Tabari: Jami' al-Bayan fi Tafsir al-Qur'an, vol. 13, Bulaq 1323)”

