“One of the meanings of the letter kaf is ‘spoon.’ The root of the word ‘spoon’ is kafaf—to bend… The kaf is a letter that is bent. It represents the aspect of submitting oneself to a greater power.
This notion of submission—and humility—can be seen clearly in the difference between the words anochi and ani. Both mean ‘I.’
When a person walks around all day and says, ‘I, I, I,’ he has a problem with egotism. How does one overcome this self-inflation? By adding a kaf to the אני (ani), the I, and transforming it into the אנכי (anochi).
When the ‘I’ submits to G-d, when it recognizes and bends to the higher power through the kaf, it is no longer the egotistical I. Rather, אנכי(anochi) is the ‘I’ that serves as a channel to do G-d’s will.”