[...] to see what I might be missing.
I remember being stuck in equanimity and always asking: What the hell am I missing? I have to find the 3C's, where are they? The retreat teacher then told me: You don't have to find the 3C's, they are the characteristics of reality, they are there all the time.
I guess that's the principle of equanimity: to accept all the sensations and stop looking for something, that's what finally enables switching into fruition.
And I agree, seeing the bigger picture of sensations and attention helps a lot.