「Threads of holiness, guiding principles」represent RELIGIOUS SCRIPTURES that reference TO UNDERGO a change, TO HAVE AN EXPERIENCE, recalling that early in history, writings to be preserved were often copied onto cloth and kept in scrolls. Suggests one's religious period as the effort TO STRANGLE ONESELF, kill the old sinful soul/sole and be born again;…or perhaps just suggests that religion will keep a stranglehold on lives for as long as it is practiced.
As「threads in soiled crotch」references MENSTRUATION (again with the threads, cloth, rag reference) and TO UNDERGO a change, TO HAVE AN EXPERIENCE, to PASS THROUGH into adulthood by an adolescent female.
「Ejaculation and crotch feces」meaning TO STRANGLE ONESELF also seems to suggest both joining any organized religion, and, the ancient Oriental practice of sexual asphyxia or erotic self-strangulation by ligature that occurs in an attempt to induce mild cerebral hypoxia during masturbation for the purpose of enhancing orgasmic pleasure, that after intended or unintended death also results in relaxation of one's sphincter muscles and evacuation of one's bowels, either way ending life with a「crotch full of feces and jism, caused by a twisted rope or noose」(likened to actions by teachers of organized religions and rope tricks, choking games so prevalent in the news, in modern times, too).
「Ejaculation」with「most direct path, means to an end」a quick TRIP TO HEAVEN, VISITING GOD, TO HAVE A DIVINE EXPERIENCE, PASS THROUGH the physical world to the spiritual, an ECONOMICAL do-it-yerself [sic] method less expensive and less time consuming than repeated visits to the shaman's cave o' wonders, WRINGING ONE'S NECK, choking that chicken, pop goes the weasel, and so forth.
Alternatively,「ejaculation」with「most direct path」perhaps refers to various abuses, first perpetrated by the shamans and today by god-hucksters, one big reason for someone wanting to become a famous evangelist of RELIGIOUS PRINCIPLES. See each of the left and right elements for their respective explanation.「Ejaculation with crotch, night soil」references TO UNDERGO a change, TO HAVE AN EXPERIENCE. Note the Taoist sages held organized religion in contempt and disrespect, so it is no wonder that this glyph equates Buddhist sutras and other religious holy writings with menstrual rags, and portrays holy saints as buggers…indeed, some were, some are still.
Elements as the「threads of potter's clay」can only be imagined as the long, sticky, dark, and very wet strings of slurry that at times appear between one's fingers, or between a hand and the clay while working it…similarly,「threads of crotch night soil」or「ejaculation with crotch soil」depicts a type of coitus that may also produce wet, sticky, brownish slurry, and elements as「ejaculations of holy saints and religious figures」may likely infer the same reasoning.「Ejaculation from crotch onto ground」(seemingly, as coitus interruptus events) might also be construed as a guide to avoid any misconceptions, advice to be followed RELIGIOUSLY throughout one's life. Any or all the above descriptions are examples of just PASSING TIME as it ELAPSES, being careful not doing anything that will result in further procreation as the fundamental point.
The shaman's peddling of soothsaying, doctoring, and sex sales or rentals were the origins of advertising, accounting techniques, advancing best business practices, and the forces supporting the ECONOMICS of early human civilization (her own, mostly) as well as RELIGION and its FUNDAMENTAL PRINCIPLES.
Without a doubt, the Irish also have knowledge of their own to pass along in these trying times:「Masturbation will not spread coronavirus, especially if you wash your hands (and any sex toys) with soap and water for at least 20 seconds before and after.」Nonetheless and regrettably, unlike in dynastic China, it must be undertaken alone to truly be a preventative countermeasure but still achieve the desired result with some degree of safety.
[ https://www.sexualwellbeing.ie/sexual-health/sex-and-coronavirus/ 2020-03-31 ]
The Dutch, too have the same solution—it seems masturbation has become mainstream in the media the world over due to the coronavirus (it has always been 'the main stream' in reality, albeit covertly for most folks):
「'Don't have sex with your partner if they have been isolated because of (suspected) coronavirus infection,' the RVIM says. 'Sex with yourself or with others at a distance is possible (think of telling erotic stories, masturbating together).'」
[ https://www.theguardian.com/world/2020/may/15/dutch-official-advice-to-single-people-find-a-sex-buddy-for-lockdown-coronavirus 2020-05-16 ]
Needless to point out perhaps, but Chinese shamans from antiquity hit upon the same solution as a pandemic preventative countermeasure, honed for ultimate client satisfaction by utilizing naked females with no-longer-integrated feet as masturbatory sex buddies available for short-term rental with erotic visualization of live prepubescent female genitalia engaging in autoerotic stimulation herself, as a solution to the same problem facing us now, but in pre-Internet days.

External source definitions …excluding politically incorrect concepts and other meanings deemed offensive today; may include extended definitions, euphemisms, and mnemonics)
Chinese: Japanese variant of 經|经
Japanese EDRDG: sutra, longitude, pass thru, expire, warp
Unihan extended: classic works; pass through

Used within names (nanori)
つね　･　のぶ