Diction is the manner or style a person uses to express an idea.

Sometimes “diction” may be used to refer to the clarity of expression. I suspect that this is the intent of your teacher; perhaps he/she was trying to indicate that your ideas were not being expressed clearly.

Depleted of strength, Jose, perplexed by conflicting perceptions, suspended world consciousness until forenoon.

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Tired and confused Jose slept until morning.