What would be the last religion?

Humanism means mastering the instinct

  The goal of mastering the instinct is to achieve that human behaviour could allow the best control of the proper human qualities, that is, those qualities being the most different than those of other hominids.

  As we are descendents of thousands and thousands of hunter-gatherers generations, the instincts coded in our genes are not, as a whole, the best fittest ones for a complete cooperative human life.
 
  In order to produce the necessary trust to implement this cooperative ideal, social evolution had lead to cultural changes to promote cooperative instincts and to repress non-cooperative instincts, basically, the agressive ones -those producing mistrust- being the cooperative instincts the antiagressive ones, those making possible the affectionate links to individuals. This would be a basic rationale.

  Cultural changes are based on logical behavioral determinants activated at a social or individual level. Among those cultural determinants, the most notable along the historical process have been the religious ones.

   A religión is, essentially, a particular symbol system of psychological determinants that developes a social ideology and acts in the emotional life of individuals with the goal of establishing behaviours of trust and cooperation. 

  As operating on emotional reactions, religión is not a rational mechanism. But it is a rational process as far as it stems from a correct observation of the emotional nature of human behavior.

   The last religion would be that one creating patterns of full trustful behavior allowing the surge of a completely cooperative culture. That is, the rational fitness of human emotional traits to the mutual interests for an universe of individuals.

  This last religión, obviously, has not come along yet.