Put a pen and piece of paper in front of You and/or have some software where You can input text opened.

Then close Your eyes and pose Yourself a question: "What is intelligence ?".

Do five deep breaths and "observe" the answer(s), they can have a form of a word (e.g. a synonym) / of an expression /  of an image / of something else.

Open Your eyes and note the answer(s) on the piece of paper.

Intelligence is a multifaceted concept that's difficult to define comprehensively, but it generally refers to the ability to learn from experience, understand and adapt to new situations, solve problems, and use knowledge to manipulate one’s environment. Here are several facets of intelligence:

Learning and Adaptation

Reasoning & Problem Solving

Memory & Knowledge

Perception

Emotional Intelligence

Creativity

It's important to note that intelligence is still a topic of debate among psychologists and neuroscientists. Traditionally, intelligence was often measured using IQ (intelligence quotient) tests, but many experts now believe that IQ tests capture only a narrow slice of what constitutes human intelligence. Moreover, various cultures might emphasize different abilities or qualities when defining or valuing intelligence, so the concept can be both culturally and contextually relative.

The process by which information from the environment is received and interpreted. This includes recognizing patterns, faces, and nuances in language or music.

The ability to store and retrieve information over time. This involves both short-term (working) memory and long-term memory.

The capacity to solve problems using logic. This can be deductive reasoning, where conclusions are drawn from given information, or inductive reasoning, where conclusions are drawn from observations.

The ability to acquire new knowledge and skills and apply them in various contexts. It also refers to the capacity to change one's behavior based on experience.

The accumulation of facts, concepts, and methods. While knowledge itself is not intelligence, intelligence often involves the effective use and application of knowledge.

The ability to identify a problem and find a solution, which might involve creativity, critical thinking, and the application of knowledge.

The capacity to come up with novel and useful ideas or solutions to problems. It's related to, but not the same as, intelligence.

The ability to recognize, understand, manage, and use emotions effectively in oneself and others. This includes empathy, self-awareness, and social skills.