Perhaps it can be said that they are like a 'wise eye' of the culture, reflecting upon life as it unfolds before society. If dichos sometimes instruct, they point to a cultural reality in a gentle manner with the awareness of a kind parent who generalizes and suggests wise attitudes - leaving the individual interpretation to the growing cultural son or daughter. Dichos are conversational heirlooms stemming from the heart of an oral and rural culture's learning experience over the centuries. The dicho, with a 'take it or leave it' tone, acts unconsciously and at times very consciously with respect to influencing the recipient's manner of thinking. April showers bring May flowers.
Hunger is the best sauce.
When you re in Rome, do as the Romans do. Monkey see, monkey do. We all make mistakes. Friendship is not to be abused. When it rains, it pours.