「Maggots, spermatozoa, children, rats」and「repeatedly with silky threads, ejaculations」perhaps depicting one generation of silk caterpillars as「maggots」after another generation in a tree, that is, the「maggots that repeatedly cause silk threads」were the progeny of the previous generations of silk caterpillar「maggots」that metamorphosed into egg-laying adult moths, and so on.
　As「spermatozoa that repeatedly cause human connections」glyph refers to human PROGENY, DESCENDANTS, GRANDCHILDREN.「Children of human connections」or「child from family lineage」are more genteel ways of stating the same thing as「rugrats spawned」from「spermatozoa in repeated ejaculations.」…but may just as easily be read as「spawning repeatedly with children」(see 曽. And in most jurisdictions of the modern world, don't try this at home).
　「Norway rats, roof rats, and house mice are the rodents most commonly found living in close association with man. They are called commensal rodents, referring to the fact that they live at man's expense without giving anything in return. Rats have very high reproductive rates. A pair of rats and their offspring could produce 1,500 more rats in only one year if they all survived. Rats breed at 3 to 5 months of age, carry their young for 21 to 33 days and have 6 to 12 young per litter, and 4 to 7 litters per year. The actual figures within these ranges depend on the availability of food, the density of rats in an area and the age of the female rat. Although one female rat may produce up to 84 young in a year, on the average about 20 young per female per year survive to maturity. Female rats can breed again 1 to 2 days after giving birth. Breeding occurs all year…. Mice mature rapidly and by 1.5 to 2 months of age are old enough to reproduce.」
　　[　now-dead link was https://ipm.ncsu.edu/AG369/notes/commensal_rodents.html 2013-09-09　so instead see　[　https://www.vancouverwildlife.com/rats/rat-facts/　2023-05-18　]　
　「In traditional Chinese medicine, there has never been a mental disease called pedophilia (or an equivalent term), or homosexuality, or most of the other so-called sexual variations for that matter. …Children are usually described as natural sexual beings and erotic stimulation and sex-play are seen as beneficial to their healthy development.」
　　[　https://docx2.com/wp-content/uploads/Are-Any-of-the-Pharaphilias-in-DSM-Mental-Disorders_.pdf 2023-05-14　]　

Modern definitions (that generally disregard history) …excluding politically incorrect concepts and other meanings deemed offensive today; may list only pigeonholed definitions, euphemisms, or meaningless mnemonics)
Chinese: grandson; descendant
Japanese: grandchild
Unihan extended: grandchild, descendent
EDRDG: grandchild; descendants

Used within names (nanori)
ひ