The phrase "to share in" means to participate or have a part in something. It can be used both as an action and as a state of being. For example, if someone says "I want to share in the profits," it means they want to receive their fair portion of the earnings. On the other hand, if someone says "We all shared in the work," it implies that everyone contributed equally towards completing the task. In essence, the phrase "to share in" signifies involvement or participation in something together with others.