impactful - adj. having a major impact or effect.

lens - n. a clear curved piece of glass or plastic that is used in eyeglasses, cameras, telescopes, etc., to make things look clearer, smaller, or bigger

positive - adj. thinking about the good qualities of someone or something

optimistic - adj. having or showing hope for the future

elementary - n. of or relating to elementary school

comfortable - adj. not causing any physically unpleasant feelings

advanced - adj. beyond the basic level