Is it a good idea to continue sending Energy for Initiation while sitting under the pyramid?

This is the Lords of Light.

Absolutely – it’s paramount that you do this. The Ancient Egyptians would Initiate from the pyramids which were set up for all manner of Transmissions.
The healing energy you send to people and to the world should also be sent from that spot.

For people already aware of the Light and Sound, the term Initiation should be referred to as Energy Transference.