When you offer flowers while prayers or greet somebody with flowers, what happens exactly? Flowers are not only impressive to the eyes, but also emit subtle aromas that directly reach brain through olfactory bulbs in our nose.
The floral aromas work on the endocrinal system of the body and bring in a sense of happiness, serenity and freshness. Because of this nature, flowers bacame part of prayers and offerings in many religions. A bunch of fresh flowers on each table make good ambiance for business discussions.
While decorating the first night bed, many oriental cultures use jasmine, lavender and other flowers that emit soothing aromas.
In all these cases smells are used to enhance happiness. Recently there was a survey in UK, that listed various smells that make Brits happy. The list include roses, freshly backed bread, petroleum and so on.
If you work for yourself a bit, you can prepare your own list of smells that make you happy and another list of disgusting smells. Then if you plan your environment in office or bedroom accordingly, you can bring in a bit more happiness at your work or engaging your spouse under sheets.