Incense sticks are the best tools to calm the mind and providing relief from stress. The incense creates a peaceful ambience and helps a person to slow down, sit and relax. The very act of lighting incense and watching the smoke curl upwards gives a sense of relief and a connection with the Divine. If you are able to discern the right fragrance for yourself, it shall enhance the pleasing and peaceful effect.
But one must be cautious about the quality of incense used. Incense sticks made of punk wood or perfumed may cause allergic reactions or nasal irritation.
Just like each mind and individual is different so will be your fragrance. Efforts to categorize fragrances to definite emotions are at best subjective. Choose the fragrance that you like. You may even like more then one fragrance depending on your moods, situations and different times of the day.