A clear, open and flowing Crown brings a sense of Peace and comfort; overall well-being. Conversely, loneliness, confusion, apathy, depression and anxiety are present when your Crown Chakra needs some work.
From Deepak Chopra:
While we have the demands of daily living and the busy minds that accompany these demands, reaching enlightenment may not be as far off as it appears. A worthy goal may be to live in a constant state of pure awareness. But how about living with moments of pure awareness? We have all experienced these moments at one time or another. Have you ever felt unconditional love for someone? Have you ever experienced a miracle?
Practicing meditation, prayer, and daily silence are disciplines that lead to increased moments of spiritual connection. In fact, these are the only means by which you will experience the essence of Sahaswara. Just as you would go to school for hours a day and study for exams to obtain a degree, meditation, prayer, and silence are your studies to obtain a spiritual degree.
Once you’ve established a daily practice of these activities that connect you to universal consciousness, you will see expansion of spiritual awareness in your outer world. You will begin to experience unconditional love on a consistent basis. You will be more compassionate, kind, and forgiving, and you will show more humility. Life will no longer be solely about you and your desires. Your life will become more about serving others because when you serve others, you are serving yourself.
While silence is the most powerful and important way to opening the seventh chakra, there are some other practices that support this chakra.
Two Pranayama breathing techniques you can do before meditation include Nadi Shodhana, or alternate nostril breathing, and Kapalabhati, or the skull shining breath.
Inverted yoga asanas such as headstand (Salamba Sirsasana) and down dog (Adho Mukha Svanasana) can help stimulate the seventh chakra, as well as any posture that brings the crown of the head to the floor such as fish pose (Matsyasana).
The color for the crown chakra is violet or white and the mantra sound is the universal sound of OM. Gems you can wear or have in your environment to help open and align the seventh chakra are amethyst, selenite, and sugilite.