The Major Arcana represent many ideals which we can aspire to.
The serenity of the High Priestess, the creative will of the Magician, and the inner work of the Hermit are just a few. If there is a card which represents ideals which we would like to nurture in ourselves, it is sometime helpful to take this card out and place it where we can see it frequently during the day as a reminder of our aspirations.
You can simply lay the card on your desk or work area, place it on your bathroom mirror, put it on your refrigerator with a magnet, or even matte and frame it elaborately.
The idea is to place it where you will see it often and to take a few moments when you see it to think about how you can manifest it's qualities during the day. After a few days, you will notice the card's qualities manifesting in your life more and more.
Do this as long as you like, and change cards when you have noticed a change or can see the qualities in your day to day life. This is a kind of mini-meditation which gives good results over time.