Constructing sentences

In the last GWC class, we practiced constructing sentences. As a review of earlier class, we did practice of stress position, use of passive voice, and old-new flow. Each techniques are used in academic writing in order to make sentences more clear and persuasive.
In addition to those constructing skills, I was advised to divide one long sentence into two sentences, when I was writing essay about culture. For example,
Wa is harmony, Kei is respect, Sei is purity, and Jaku is tranquility, and those postures derive from~
can be changed as
~Jaku is tranquility. Those postures derive from~.
I think this is connected to the principal of reducing clause in one sentence.