This dream is rich with symbolism and can be interpreted in several ways.

Finding a mine often represents the discovery of hidden potential or resources within yourself. It suggests that you are uncovering aspects of your personality or talents that you may not have fully recognized before.

The entrance to a cave can signify a journey into your subconscious or exploring deeper emotions and thoughts. Caves are often associated with introspection and the exploration of the unknown within oneself.

Encountering a cougar in the cave may reflect your instincts or inner strength. Cougars are often symbols of power, bravery, and confidence. The fact that it was friendly indicates that you may be coming to terms with your own assertiveness or perhaps embracing a part of yourself that you previously feared or misunderstood.

The sapphires on the floor symbolize wisdom, truth, and spiritual insight. The variety of colors and clarity could signify the richness of experiences and emotions that you are collecting in your life. Collecting the sapphires suggests that you are gathering knowledge and insights that will benefit you in your waking life.

Overall, this dream may be encouraging you to explore your inner self, embrace your strengths, and recognize the valuable wisdom you possess. It might also be a sign that you are on a path of personal growth and discovery, with the potential for great rewards ahead. Consider reflecting on areas in your life where you can tap into your hidden resources and strengths.