I have some background in astrology and psychology and am a cancer sun/cancer ascendant (curse) and relate to this card.
Crab would symbolize repressed emotion. Cancers are known for being intensely emotional IF they are emotional but will repress if threatened, hiding into shell. Aside from cancers, it is in emotional times which we react not based on wisdom but on conditioning, or our shadow selves. Specifically when we repress emotion and it comes flooding down like rain, the situation will be further clouded. The owl, IMO, represents acting based on wisdom rather than emotion. IF we do not do the psychological work to heal and address our past, during emotional times, we will continue to act based on the wounds of past.
How often do people seemingly over react to a situation which is a trigger. They may look back or others may wonder why they acted so severely. It is always to do with a situation in our past which exists on a deeply subconscious level which we, as that individual, preceive as a threat. We develop those when we are children and do not understand the world. When our innoncence is threatened. Fitting given the piper symbolism leading children astray. It may be that the current situation is not at all like that childhood situation but it mimics, triggers and we react almost unknowingly and based on pure emotion.
When we react based on pure emotion and not wisdom, the person we play that out with is given choices....they can either react back further causing rift in the partnership or succumb or sacrifice themselves to a situation, causing a loss of self and stiffled expression (lotus not being able to open fully). Or embryos stuck in that form, a stiffled birth of the full potential of the relationship. I'm thinking of a couple where one goes on an emotional rampage and the other prostrates themselves in order to calm the situation. Relationships should not be based on self-sacrafice but a mutual sharing of light. Sun (masculine) provides light to the garden (feminine) and feminine grows. If feminine is dominant, it obscures the sun.
When emotion rules our lives, we can cloud so many siutations that we can not accept light. We are taught that emotion should not be repressed, and it should not, but it needs to be understood and used more productively. This is a call to dig deep into one's psyche and a warning that if one does not, they will not receive the light of others. Specific to a relationship reading, it would be emotional reactions preventing a union or coming together based on wisdom and truth.
In alchemy symbolism, when two come together, they are tied together in a passion and also extreme pain until they transform. In relationships, how often are two tied together in a painful and confusing dance....either they continue to repeat these patterns with each other or in a new relationship, or they transform. If, in relationships with others, we do not take these situations and dive deep into our subconscious to understand, we will continue to put on the facade of the monkey which is dangerous and could kill the relationship or sense of selves.
Emotional situations are a call to look at ourselves, not the other, for wisdom and transcendence.