>>6283061>>6283066>>6283067Think of it this way, in accordance with evolution life has evolved using reproduction in order to remain in the form it wants to remain in. It has also developed further beyond this but the fundamental principle is that reproduction is to be used in order to remain in form. The body of you is a manifestation of this, and therefore also your brain. What do you do that does not in some way aim for the continuation of this species? If you are studying to achieve a degree in engineering (for example), isn't this so you one day can get a job in this sector? And what does this job benefit (usually)? Society, and what does society aim to do (usually)? Secure the continuation of the species.