What Exactly is Experientialism?

Experientialism is the philosophical theory of knowledge that sustains or acts as the outlook on life of many diversified stubbornly individualistic persons who prefer to think  analytically  and decide  what to believe for themselves. Experientialism allows a person to assume that people are entirely free to make decisions and are  thus responsible for what they make of themselves,  or to believe   the opposite - that  all events are the result of a catenulate sequence of antecedal  impingements of both human and non-human causal objects. Thus every person in the world has a unique accumulation of knowledge, of skills or disadavantages that result from  their experience of events or activities initiated by a network of past events.  Some experiencers are free from the inherited mystical baggage of Platonic and Aristotelian folk philosophy, and the weirdo cultic  grammatico-ontological contortions of transcendentalism - others are not.   Experientialism rejects reificist  sects and cults such as those epitomised by the throwback ontological aberration which is Existentialism.  Of course like any other "...ism"  experientialism does not actually exist - only experiencers themselves exist.