Scholarly approaches to mysticism include typologies of mysticism and the explanation of mystical states.

a unit of the British Royal Navy created in January 1942 to develop and disseminate new tactics to counter German submarine attacks on trans-Atlantic shipping convoys.

attempts by evolutionary psychologists and evolutionary psychiatrists to use the theory of evolution to further understand mood disorders.

Bayesian approaches to brain function investigate the capacity of the nervous system to operate in situations of uncertainty in a fashion that is close to the optimal prescribed by Bayesian statistics.

Christians have used many different approaches to spread Christianity via the practice of evangelism.