“Forbidden fruit is sweet”-how do you understand this expression?

This expression is often used to refer to something that is attractive or desirable but is off-limits or otherwise not allowed. It is often used to describe a situation in which someone is tempted to do something that is not allowed, or to pursue something that is not socially or morally acceptable.

The phrase is derived from the biblical story of Adam and Eve, in which God tells Adam not to eat the fruit from the tree of knowledge of good and evil. Despite being warned, Adam and Eve succumb to temptation and eat the forbidden fruit. The phrase “forbidden fruit is sweet” is used to describe the idea that something that is off-limits or not allowed can be particularly attractive and alluring.

The expression can be used to describe a wide range of situations, from something as simple as a child being tempted to eat candy before dinner to a more serious situation such as someone being tempted to engage in an affair. In each case, the idea is that the forbidden fruit is sweet and attractive, and can be difficult to resist.