Simply put, philosophy is conversing with the unknown. It encourages us to respond to answers with questions, guiding the thinker to reconsider how they think. That alters perspective; so the study is essential to those mentally lost to a dark place, as they will feel inspired to engage with the intent to understand instead of solely suffocating. I sometimes think philosophy is a direct line to 'god,' for as you philosophise, you shift from an unexamined life and into a domain untouched by man. You talk to the mystery, which is often yourself, attempting to learn what is not taught but remembered, for we were once there before arising here.
Philosophising is complex thought seeking to simplify the complex.
Artist: Aron Wiesenfeld