Kāʾid-i-kahr refers, for the common people, to celestial bodies known as Saturn, Mars, and other such planets, which are called nühūs (unlucky) among the masses. (Heyākil, 99)
Kāʾid-i-saʿādāt (also known as kāʾid-i-saʿādāt) refers to celestial bodies such as Jupiter and Venus, which are called felek-i-suʿūd (fortunate planets). (Heyākil, 99)
Kalak: Allah, the Exalted, has related in the words of His Noble (Kalim) Prophet Mūsā (peace be upon him): "My Lord, I hastened to You so that You would be pleased with me." Kalak is the stirring of longing (shawq) that arises when sabr (patient endurance) ceases (when sabr is gone, longing moves a person to action).
There are three degrees of kalak: The first degree is when the presence of people (or their bad character) disturbs a person, causing him to dislike being among people (or gathering with them), and to find pleasure in death—this kind of kalak compels a person to seek retreat (khalwa).
The second degree is kalak that dominates the intellect, weakens the senses, and renders one's strength ineffective (this kalak completely overtakes the nafs).
The third degree is kalak that never shows mercy, accepts no limits, and leaves no one in its wake (it drowns everything other than the Real in the ocean of fanāʾ [annihilation in God]). (Manāzil, 33)