Counselling involves a relationship between a counsellor and client where the counsellor assists the client. There are three main types of counselling: directive counselling where the counsellor guides the client, non-directive counselling where the counsellor takes a passive role and the client guides themselves, and eclectic counselling which combines elements of both. The document outlines the key aspects of each type including their steps, merits, and demerits. Counselling aims to help clients understand their problems, realize their abilities and weaknesses, develop insight, and make their own decisions.