The insight to the most important question in your life lies below. First, observe the symbols and images in your tarot card, then slowly take in the wisdom in your reading.
The High Priestess is the card of knowledge - instinctual, supernatural, secret knowledge. She illuminates what you otherwise might not see and reveals the secrets you need to know in order to make a decision about a problem or a job, an investment, love, career, family, etc. When you get the High Priestess, you're going to be learning some very odd things. Very odd.