Your problem is not clear to me. They function much like other nouns: use them when you did a word with their meaning.
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Thank you for your kind response. My therapist recently offered the term, "ambivalent paradox" as an alternative to one I use frequently in sessions with her, "holding the tensions between life's dueling opposites", considered a foundational precept in Jungian psychology - holding the balance between the opposites by remaining conscious of both at the same time.