This is a part of series on the rising signs, not necessarily in Zodiacal order.
So this is something I have pondered about. Cancer placements - since they're ruled by the moon - represent the 3 faces of the Moon Goddess : Maiden, Mother and D*eath-crone. Cancers might suffer mood swings and anger issues etc because they remain stuck in one of these phases, mostly the Mother.
Also it's independent of gender - Maiden, Mother etc are just energies, or attitudes. And it has nothing to do with age either. Again it's just an energy. Some are old and still stuck in the Mother phase while other younger cancers have already embodied the Crone.
Maiden : Cancers have Leo in the 2nd house of values. The maiden is free spirited and curious. She gives value to creativity and self expression. She wants to discover the world and explore everything. She doesn't want to remain stuck in her family's house or confined between four walls.
The Maiden wants to go out and have fun and fall in love. The maiden does not want to be tied down by familial obligations, so she isn't about nurturing or maternal energy. The spirit of youth is the Maiden, the eternal spring where playfulness and fun take over.
The Mother : Cancers have Scorpio 5h. When does the Maiden transform (Scorpio)? You guessed it - when she becomes a Mother (5h of children). It doesn't have to do with biological motherhood or procreation. 5h is also falling in love - anything that's close to your heart and you love passionately. It can be children, partner, property, house, money, etc...
Once cancers stop being the Maiden (exploring and having fun) and start to seriously care about stuff and people, they attach and refuse to detach. As the Mother clings to her children, cancers cling to anything they love and refuse to let go. They are likely to treat a loved one like their own child. They can be quiet possessive over everything they hold dear (again, Scorpio 5h).
Cancers have Sagittarius in the 6th house. The 6th house is rules and regulations which civilization sets. The routines, grind, discipline, submission, obedience, schedules, strictness, all "nitty gritty" of human daily life can contain humans but not Mother Nature. Sagittarius is an expansive sign and it can't be contained in a restraining house such as the 6th.
Mother Nature is indeed expansive, powerful and wild, natural disasters cause sudden damage to cities that humans constructed. No rule or law or restriction can contain Mother Nature because she's so powerful and does her own thing at will. No one can understand her or regulate her or control her. Even bushes start to grow over a destroyed wasteland. Nature takes over again and overcomes everything, after humans ruin stuff.
Oh, but yes, only one thing can overcome Mother Nature : Time... Saturn. Cancers have Capricorn in 7h. With time, green becomes gray, plants, trees etc d*ie out - so that new ones grow and flourish later and the cycle repeats. Interactions with other people (7h) can force Cancers to detach.
"Come on, grow the hell up" is something Cancers are likely to often hear from partners, friends, family members, and basically everyone. "Grow up" here means stop being attached to impermanent stuff which time might take away someday. Children grow up and leave the home. Partners might leave too. Money, possessions and property might go away etc...
When cancers learn to detach eventually, they become the Crone. The difference between the Mother and the Crone is that the former loves with attachement, the latter loves with detachment. The former only loves her children but the latter loves all children and everyone as her own children even if there's no bIood relation.
The Crone cares about everyone, about humanity as a whole, independently of whether they're from her family, or her tribe, or her country etc. Same as Mother Nature, She nurtures everyone, she helps them grow, and doesn't care about nationality or race.
The second transformation for cancers occurs in the actual 8th house of transformation, where they have the rational, detached Aquarius. Saturn rules the 7th as well as the 8th house, so if cancers themselves do not decide by themselves to detach and become the Crone, disappointment from interactions with other people is likely to make them detach. It's better to detach as a result of inner wisdom than disappointment from others, right?
So if you have a cancer placement, think about this. Try to find out whether you're the Maiden, Mother or Crone. Try to become the Crone. Keep in mind that it's not a linear process, you can go back and forth between those phases. But the goal is embodying the Crone.