The ultimate aim of Freemasonry is indeed closely related to the concepts of self-conquest and the transformation of the self. As J.D. Buck states, the process of genuine initiation involves 'placing all the operations of the body under the dominion of the Will: In freeing the Ego from the dominion of the appetites, passions, and the whole lower nature.' This mastery is not about the destruction of the self but rather about elevating and controlling it, leading to a higher state of being. Buck emphasizes that 'the idea is not to despise the body, but to purify it,' indicating that the goal is to achieve a harmonious balance between the lower and higher aspects of oneself.
Furthermore, the journey of self-knowledge and alchemical transmutation is portrayed as a path towards becoming a 'Master,' where one renounces selfish desires and develops compassion for all beings. This aligns with the notion of achieving a state of liberation and enlightenment, where the individual transcends the ego and realizes a deeper connection with the universe and humanity.
Thus, while the elimination of the ego is a part of the process, it is more accurately described as a transformation and elevation of the self through rigorous self-observation and personal effort.