probe into

Also found in: Idioms.
See: research
References in classic literature ?
He would have liked to probe into his soul so that he might see in its nakedness the dreadful dismay of the unknown which he suspected.
When installing any cochlear implant, a surgeon threads its electrode-studded probe into the cochlea's inward-spiraling interior.
This leads to the question of how to get enough of the probe into the drum without contacting the agitators that help move the coffee in the drum, or the spokes that help support the weight of the drum on the shaft.