Aswiss psychoanalyst who described religion as something that grew out of the individual's need to arrive at personal fulfillment, which he called individuation

The answer is "Carl Gustav Jung".

Carl Gustav Jung was a Swiss psychiatrist and psychoanalyst, and also known as the founder of analytical psychology. He is best known for his theories of the Collective Unconscious, including the idea of archetypes, and the utilization of synchronicity in psychotherapy. Archetypes, he recommended, were intrinsic inclinations that assume a job in affecting human conduct.  

Jung trusted that the human mind was made out of three segments: the self image, the individual oblivious, and the aggregate oblivious. As indicated by Jung, the ego represents the conscious personality while the individual oblivious contains recollections including those that have been stifled.

new communications technology has affected the way social movements are organized because nowadays, social movements rely on social networks and the media to get different people with a similar way of thinking in contact, and thus, get them to mobilize for a greater cause.

individuals only participate in collective action when they feel identified with it. is in this aspect that social media becomes relevant, because it guarantees communication among all individuals and organizes the social actions that are going to be carried out, i.e., the social movements.

in addition, being covered by the media is important to validate the message and make it relevant in the social agenda, as well as to reach more people who can share interests, appealing to public sympathy for their cause.

in conclusion, it is by social networks and social media that social movement is given birth; by connecting different individuals with similar ideas and organizing them to mobilize for a greater cause.