Element. You don't think you can learn many of the things the Buddha taught by studying yourself?
imo, "studying yourself" is quite a general statement. If we say "studying the body & mind" via introspection, imo, this is more fitting although Dogen, did famously say: the Buddhist teachings are the description of what the buddha found when he studied his body & mind if our description does not match the Buddha's, this may be cause for reconsideration many human beings have meditated but not each has had the same experience kind regards