"Give rein to" is an idiomatic expression that means to give freedom, permission, or full control to act upon one's desires, impulses, or instincts without any restraints or inhibitions. The phrase is derived from equestrian terminology, where the rein refers to a strap or band that is used to guide and control a horse's movements.
When someone is said to "give rein to" their emotions, it implies that they allow their emotions to take over, disregarding any rational or logical considerations. In this context, it suggests a lack of self-control, giving in to and expressing one's feelings or reactions with intensity or without any moderation.
The phrase can also refer to giving someone or something the opportunity or freedom to fully develop, explore, or express their potential or capabilities. For instance, if a project manager gives rein to a team member, it means they allow that person to take the lead, make decisions, and fully utilize their skills and expertise.
Overall, "give rein to" emphasizes the idea of letting loose or allowing something to proceed its natural course, whether it pertains to emotions, actions, or the development of individuals or projects. It involves granting and embracing a sense of freedom, autonomy, or self-expression, either to oneself or others.
