"The misfortune that befalls a man on account of his egotism can be realized if you only think of the condition of the calf. The calf says, 'Hamma! Hamma!' that is, 'I! I!' And just look at its misfortune! At times it is yoked to the plough and made to work in the field from sunup to sundown, rain or shine. 

Again, it may be slaughtered by the butcher. In that case the flesh is eaten and the skin tanned into hide. From the hide shoes are made. People put on these shoes and walk on the rough ground. Still that is not the end of its misfortunes. Drums are made from its skin and mercilessly beaten with sticks.

At last its entrails are made into strings for the bow used in carding cotton. When used by the carder the string gives the sound 'Tuhu! Tuhu!', 'Thou! Thou!'—that is, 'It is Thou, O Lord! It is Thou!' It no longer says, 'Hamma! Hamma!', 'I! I!' Only then does the calf's trouble come to an end, and it is liberated. It doesn't return to the world of action.
"Likewise, when the embodied soul says: 'O God, I am not the doer; Thou art the Doer. I am the machine and Thou art its Operator', only then does its suffering of worldly life come to an end; only then does it obtain liberation. It no longer has to be reborn in this world of action."
Sri Ramakrishna: "You cannot get rid of it until you have realized God. If you find a person free from ego, then know for certain that he has seen God."
Source: "Gospel of Sri Ramakrishna"