This logical aspect can help solve problems with cleverness and discipline. Mercury trine Saturn natal gives persistence and perseverance which usually leads to success. Your diligent and sustained striving means you should enjoy longevity in whatever you apply your mind to. Whether your career, family or hobby, your commitment gives lasting results.
Your rational and common sense approach to life, in general, gives a solid foundation for all your endeavors. Good concentration and a methodical approach mean you rarely make mistakes and may, in fact, be a perfectionist. Routine, structure, and stability in your life are necessary to make you feel grounded.