Beginners must first place more emphasis on the "physical shape" and less on "mind intent". First achieve "physical likeness", then work on "spiritual quality".
As in learning to write with the brush, the writing should be practised first in regular strokes. When the shape and structure of the strokes are correct and standard, then only progress to practise for instance, "reverse in and flat out", "close the stroke by concealing the point" techniques. The next stage may be progression to running script and cursive script. Practise diligently and constantly until the brush is used freely and spontaneously whilst functioning within the rule of writing.
Grasp the fundamental rules of Taijiquan, and you will always maintain the correct posture and structure even in complex movements. Building upon the basics probe further to understand the intended meaning of postures and movements. Correctly grasp the underlying principle. Embody coordination of different parts. Pay attention to timing and rhythm. Demonstrate the unique characteristics of the art. Express the spirit. Improve the standard of training. Learn to train the "jin". Don't emphasise one thing at the expense of the other.