The crown chakra is associated with being connected to a higher power. You can choose to sub in God, the Divine, my Inner Wisdom or any word/entity that better resounds within your soul. The Universe is what makes most sense for me. I feel that it covers all beings, nature and celestial entities.
Deficiencies in the crown chakra are associated with a lack of connection, skepticism or confusion. Excess energy in the crown chakra can manifest itself in hyper-spiritualization and a lack of grounding in the real world.
Forced religiosity and a lack of questioning or exploration of spirituality can also throw the crown chakra out of alignment. For myself, I believe my crown chakra has always been seeking a type of connection, but it did not find it until I became an adult. I was not finding it in church while growing. I had so many questions and things being taught were not adding up to me. For a few years in my early adulthood, I tried to shut my crown chakra off completely and deny any connection with a higher power or spirituality. In the past few years, I have been working to re-establish that connection in new ways, which sparked the development of this blog.
I chose lotus pose (padmasana) to work on my crown chakra. Lotus pose is both grounding and lifting. Sitting in the stillness of meditation with the intent to listen and connect opens up the crown chakra. Meditation is what has helped me establish and explore my connection the Universe, the Divine, God and my Inner Wisdom.