Experience as a general concept comprises knowledge of or skill in or observation of some thing or some event gained through involvement in or exposure to that thing or event. The history of the word experience aligns it closely with the concept of experiment.
The concept of experience generally refers to know-how or procedural knowledge, rather than propositional knowledge. Philosophers dub knowledge based on experience "empirical knowledge" or "a posteriori knowledge". The interrogation of experience also has a long tradition in continental philosophy. The German term Erfahrung, which is translated as 'experience' into English has, however, a slightly different implication, given that it is associated with the coherency of life's experiences.
A person with considerable experience in a certain field can gain a reputation as an expert.
Certain religious traditions, such as in certain types of Buddhism, Surat Shabd Yoga and mysticism) and educational paradigms with, for example, the conditioning of boot camps, stress the experimental nature of human epistemology. This stands in contrast to traditions of dogma, logic or reasoning. Activities such as tourism, extreme sports and recreational drug use also tend to stress the importance of experience.
Most wisdom-experience accumulates over a period of time, though one can also experience (and gain general wisdom-experience from) a single specific momentary event.
One may also differentiate between physical, mental, emotional and spiritual experience(s).
Second-hand experience can offer richer resources: recorded and/or summarised from first hand observers or experiencers or from instruments and potentially expressing multiple points of view..
Third-hand experience, based on indirect and possibly unreliable rumour or hearsay, can potentially stray perilously close to blind honouring of authority.