The website Stillness Speaks combines Adyashanti and Eckhart Tolle in one video talking about the essential shift in consciousness that probably lies at the heart of our efforts to ascend.
For me, the points that Adya and Eckhart make here are the nub of the spiritual matter.
But, in case that whets your appetite for more of the real basics, here is another video from Adya that provides good instruction on how to spiritually orient oneself generally, but, for us, specifically during this time of chaos.