The term "libidinal" is derived from the concept of libido, which was originally introduced by Sigmund Freud as a psychoanalytic term referring to the energy or drive that fuels human behavior, especially sexual behavior. In general, "libidinal" refers to anything related to or influenced by this instinctual sexual energy.
The term "libidinal" is often used in a broader sense beyond Freudian psychoanalysis to describe a wide range of emotional and psychological experiences related to desire, pleasure, and the pursuit of pleasure. For example, someone might use the term "libidinal" to describe the passionate energy behind their creative work or their intense emotional connection to a particular hobby or interest.
In short, the term "libidinal" can be used to describe anything that is related to or influenced by the basic human drive for pleasure and satisfaction.