So, here's what I'm talking about. It's about the Senses. The 5 basic senses - smell, sight, feeling, hearing and taste.
The idea is that we people have all 5 senses and we communicate and get to know the world through them. BUT...
Back to the topic. If you can't define your top sense, this may mean that you have two dominant senses, but one is always predominant over the other. You second sense may be your hearing. Maybe you have special inclination towards high quality music, sound effects and you hear all sounds and noise (pleasant and unpleasant alike) when you're out. Maybe you hear all the birds and consciouly pay attention to them. Maybe you feel so good when you just hear the chirping or the songs of a distant nightingale. You get my point.
You can go into more depth using these ideas. Pay close attention to your preferred types of activities. So you may be a person who likes the taste of food and drinks. Maybe the physical activities, bodily pleasures and overall comfort make you the most happy (you're a kinetic type), or maybe the smell of flowers and other pleasant odors refreshes you the most.
You can pick your dominant senses by exploring how much troubles and puts you off the opposite to pleasure. If you're a kinetic type you should simply detest the idea of staying in one place only without traveling, climbing, running, doing some activity, or the inability to work in a comfortable chair, room, environment, etc.
I think this is a very much unexplored area and people still don't realise that they may have the key to their happiness (literally) by simply getting deeper into their own senses.
To finish, we need to have all 5 senses pleased, but there's 1 or 2 that need it the most to really make you happy. Think about the people you think are the happiest. What do they do? Are the designers, musicians, dancers, gourmey lovers (maybe chefs) or deal with perfumes? If they love what they do and they do it every day, then they have found the key to their happiness. Explore this idea and I hope it will set you to your own 'happiness' path. Consciously!