I have been exploring how the heart center combines with head and/or belly centers for different flavors.
When the head center is included, there is the usual empty luminosity and clarity of the head center there. A very yang brilliance (compared with the smooth fullness of Spirit filtered through the belly center, it is stark, almost a desert quality).
And when the belly center is included, there is the smooth, round fullness of the belly center, which allows a felt-sense of the heart qualities.
And together, there is even more sense of fullness and richness… the love of the heart center, the empty luminosity of the head center, and the velvety smooth round fullness of the belly center. The loving, seeing and feeling of all as Spirit.
I also notice, as I did early on with the belly center awakening, that bringing in the head and belly centers together invites the heart in as well. Although it is certainly possible to start with any one, and bring either or both of the others in.
Of course, there is not really any “bringing in” of anything… all three are there, but it is possible to invite one or more into the foreground of awareness… shifting each one more into the foreground or background.