Emotions guide you to understand yourself. If you have feelings of discomfort and fear, this tells you to avoid a situation or a person. If you feel joy and excitement, you learn to do more of what makes you happy or meet people who make you feel good. Emotions then enable you to communicate and understand others. We use different facial expressions and body language to show each other what we think and feel. The better you are at feeling and describing your emotions, the easier and smoother your communication will be.