Self-awareness is the first level of intelligence because it is the foundation upon which all other forms of intelligence are built. It is the ability to recognize and understand one’s own thoughts, emotions, and behaviors, and to use that information to make conscious decisions and take appropriate actions.

Self-awareness is a critical component of emotional intelligence, which is the ability to understand and manage one's own emotions, as well as the emotions of others. It is also a crucial element of social intelligence, which is the ability to understand and navigate the social world around us.

Having a high level of self-awareness allows an individual to better understand their own strengths and weaknesses, as well as the thoughts and emotions of those around them. This understanding can then be used to make more informed decisions and take more effective actions, both in personal and professional settings.

Self-awareness can be developed through mindfulness and introspection. This involves paying attention to one's own thoughts and feelings in the present moment, without judgment. It also involves taking the time to reflect on one's experiences and behaviors, and to consider how they may be impacting oneself and others.

Individuals who are highly self-aware tend to be more successful in both their personal and professional lives. They are better able to communicate and connect with others, and they are more resilient and adaptable to change. They are also more likely to have strong relationships and successful careers, as they are able to understand and manage their own emotions and the emotions of those around them.

In conclusion, self-awareness is the first level of intelligence because it is the foundation upon which all other forms of intelligence are built. It allows individuals to better understand themselves and others, and to make more informed decisions and take more effective actions. Developing self-awareness through mindfulness and introspection can lead to greater success and fulfillment in both personal and professional settings.