「Surrounded by tonguing mouths and palming emissions」seems unmistakably a reference to the DARKNESS, STUPIDITY, IGNORANCE within the CAVE OF WONDERS, the RELIGION OF THE SHAMAN, belief in DIVINITY, MYTHS and a living UNDERWORLD.「Surrounded by tonguing mouths and palming emissions」also seems unmistakably to be a reference to the WORLD UNDER a client standing above one or more service providers.
The GRAVE, being DEAD or DEAD BEINGS (certainly an oxymoron) as some religious writings plainly state: Ecclesiastes 9:5 suggests that dead folks know nothing [stupid, open-mouthed stupor] and have no memories [ignorance], despite the reasoning of religionists and translators attempting to deny it. 'dead' means 'not living,' and 'living' means 'not dead' —ask any four-year-old child.
「Surrounded by speaking and deep six」unlikely based on this glyph's use in other glyphs, but possibly relates to the six stages of the UNDERWORLD for rebirth after death, being dead described in Buddhist dogma. IGNORANCE and STUPIDITY may have evolved in reference to anyone believing in the literal existence of HELL, the UNDERWORLD, the rebirth process, Buddhism, superstitions, numerology, and folks who dislike the numeral six or any other numeral, star charts, astrology, royal birthright, psychics, or other religious dogma in general. Recall that the Taoist sages held little regard for any sort of magical thinking, and especially religious-based tripe.
「Surround open-mouthed and emit from palm, six」as perhaps the source of the English term DEEP SIX (see 溟 meaning the SEA): burial at sea, throwing a corpse overboard, to jettison flotsam and jetsam, discard trash by tossing it into dark, deep water (not considered ecologically responsible any longer, only being IGNORANT and STUPID). Tossing a human being corpse overboard remains acceptable, as it will feed many sea creatures on its way FLOATING DOWN INTO THE GRAVE, HELL, THE DARKNESS OF THE DEEP WORLD BELOW, but bycatch or de-finned sharks, on the other hand, is being irresponsible.

External source definitions …excluding politically incorrect concepts and other meanings deemed offensive today; may include extended definitions, euphemisms, and mnemonics)
Chinese: dark; deep; stupid; the underworld
Japanese EDRDG: dark
Unihan extended: dark, gloomy, night; deep