Emotional intelligence is the power to recognize our emotions and those of others as well, identifying different feelings and labeling them properly, using emotional information to guide thinking and behavior, and managing emotions to adapt to environments or achieve one's goal. 

It is the ability to identify, understand, and manage our emotions and those of others. It involves five components: self-awareness, self-regulation, motivation, empathy, and social skills. Self-awareness is the ability to recognize and understand our emotions, while self-regulation is the ability to manage our emotions effectively. Motivation involves using our emotions to drive us toward our goals, while empathy is the ability to understand and feel the emotions of others. Finally, social skills refer to the ability to communicate effectively, build relationships, and work collaboratively with others. 

The ability to analyze and control feelings, understand and empathize with other people makes emotional intelligence a crucial tool in building and maintaining healthy relationships, especially in marriage and family. Problems experienced in marriage not only cause health problems but also cause difficulty in child raising, development of problematic attachment between children and parents, conflicts between siblings, and sometimes it leads to divorce. 

EI is vital in marriage as it improves communication and conflict resolution. When couples have high emotional intelligence, they can communicate their feelings and needs effectively, leading to better understanding and problem-solving. Emotional intelligence also encourages mutual trust and respect in the relationship, leading to a stronger bond between partners, it also promotes emotional intimacy and bonding, which is essential in building a healthy and lasting relationship. Emotional intelligence is equally important in building a family. As It promotes positive parenting and discipline styles, leading to better communication and understanding between parents and their children. 

When parents have high emotional intelligence, they can manage their emotions effectively, leading to better decision-making and problem-solving. Emotional intelligence also builds strong family relationships and connections, leading to a happier and healthier family. Finally, emotional intelligence helps to manage family conflicts and challenges, leading to a more harmonious family environment. You can practice developing EI in your marriage by analyzing your feelings and being self-aware, putting yourself in your partner's shoes, and seeing things from their point of view, communicating with your partner about your feelings and concerns, being best friends with your partner and creating a safe and respectful environment for you two and the family.