Having an「ear for orifice to present to the king」as a SAGE able to locate an exceedingly rare and scarce commodity—virginal orifice with a fine face and body to match for recruiting into the harem (normally, they've all been shitepoked at a very young age already). A HOLY, MODEL HUMAN BEING such as a HIGHLY VIRTUOUS MONK (a「soldier for the king's orifice」) who holds true to a vow of celibacy at least with the lord's assets, since the average person might just as easily be the one who does the shitepoking after locating a prime subject.
As perhaps while「listening and adjusting balance and positioning while performing various proceptivity procedures.」…listening to one's partner and adjusting one's methods accordingly is the best way to achieve the goal of sending someone blasting off, and anyone who does so will be thought of as a GENIUS, or as GODLIKE by that partner…well, for a few moments at least.
「Adjust internal pressure in orifice, vent by repeated bobbing head to extract shit」sounds a bit like a visit to the clap clinic, and getting close to the gods (in prayer, or death). May also depict anal intercourse: in simplified Chinese, this glyph became「crotch with soil, feces, shit」(圣 something malleable, can be shaped or formed), and「mysterious, suspicious, doubtful」probably in reference to「holy people」(clearly, an oxymoron) or to「sage advice.」
One might imagine the glyph referred to a SAGE GENIUS shaman who could speak with「mouth」directly into the「ear」of the「king, royal person.」Perhaps depicts someone who can hear exceptionally well, even listening to the voices of gods, particularly while intoxicated or delirious and hallucinating, before passing out. A HOLY PERSON, someone who kneels and kowtows a lot to the gods because folks figure gods like that sort of abased kneeling and crawling around like a reptile.「Ears and mouth repeatedly with soil」as a person ranting with glossolalia, grovelling in the dirt spouting non-meaningful speech, especially such speech associated with a trance state or certain schizophrenic syndromes, psychotropic mushrooms, or bad tequila (see 酲)…or, some pretty good tequila. Shamans claimed to hear the voices of the gods, telling ordinary folks what the god said, and holy folks today still make that claim. SAGE or GENIUS, since anyone who can persuade others of being able to hear the voice of god while no one else can hear it must certainly be fairly clever, to say the least.
Perhaps「flag」「exhibit, presented」as the SAGE GENIUS guy who first had the idea of inserting flags into the pants of soldiers in order to identify who was friend and who was foe, an idea of true GENIUS that minimized friendly fire and the cavalry hacking to bits their own foot soldiers, something that everyone agreed was a pitiful waste of resources. Lower portion of this glyph as a person「repeatedly on ground」may be why the glyph first indicated a foot soldier with a flag in his pants, since it is not so easy to run like that, and since it also made it easier for the enemy to locate and attack him, too. For whatever reason, not many Asian soldiers wear a flag in their pants during battle these days.

External source definitions …excluding politically incorrect concepts and other meanings deemed offensive today; may include extended definitions, euphemisms, and mnemonics)
Chinese: holy; sacred; saint; sage
Japanese EDRDG: holy, saint, sage, master, priest
Unihan extended: holy, sacred; sage

Used within names (nanori)
きよ　･　さと　･　さとし　･　せ　･　たか　･　ただ　･　ひろ　･　まさ　･　み