The Pyramid is the Egyptian symbol of evolution of the soul through time. It talks about timelessness, initiation, and preservation. In this way, it refers to a timeless and ageless approach to the situation at hand.
Because of this, the Pyramid can be equated with optimism or the ability to sense future changes or conditions. It also may indicate an ability to evaluate past lessons and learn from them. If you’re seeing it as the tension that you’re currently holding, it may indicate that you are slightly anxious about what’s to come.
The Pyramid retains a certain amount of mystery (contemplate all of the hidden passageways and boobytraps of the tombs) so it’s possible that the energy of this Chakra is similar in nature. Difficult to get to know, and with untold inner depths.