All esoteric traditions that speak of suppression of the self are radically mistaken. There is no suppression of being, there is suppression of the image of the self as given in the presence self, the social self and the biographical self. In Hinduism, there is talk of peeling the various layers that make up the psyche - memory, language, emotions etc. - until remains something that constitutes the true substance, the brahma, which is eternal. However, this act is not only not possible, but it disregards an even more serious fact: it is only as a substantial irreducible self that you can experience divinity. This condition, rather than an obstacle, is your path to that experience .
The problem with the metaphor of the drop of water in the ocean is that it represents no salvation. If I disappear, there is no salvation. What is the difference between saying that I am going to become a great God - and losing my personality - and saying that I am going to dilute myself in matter and turn to dust in the grave? There is not much difference, I disappeared anyway. In order to have salvation, on the contrary, it is necessary that I remain; that there is a human, stable core that can say 'I'. It is necessary that I enter into synergy with God and at the same time remain myself.