Which Perspective on Personality Makes The Most Sense.

I think the perspective about how everything is done because of two desires makes the most sense, mainly Eros and Thanatos.

If you think about it, everything we do can be linked to having an end result of sex. For example, you eat to survive to have sex, or you sleep so that you can have energy the next day for sex. And so on, because this is what all animals are made to do: procreate.

For those issues that Freud could not explain through the Eros (libido), he came up with Thanatos in which things we do is to eventually return to an inanimate state i.e. death. Examples include sadism and masochism, where these acts are considered "direct manifestations of the death instinct".

Thus I feel this makes the most sense.