i thought maybe they are related, because chakras are in the most basic sense, supposed to be some sort of wheels or so..
and glands sort of "keep it moving" within the body, in some way... but that's rougly said definately an oversimplification. or it's wrong... because glands probably have a deeper sense/meaning or so.
as far as i can see, a very advanced way of looking at it is something like "wheels within wheels". i think that's where dimensions can play one or many roles.
maybe like it's all energy... and energy forms cycles and (re)cycles forms... any thoughts???