Sri Chinmoy said this quote

“ You can purify your existence by feeling deep within yourself a beautiful rose or lotus, or any other flower that you like. A flower is all purity. Try to identify yourself with the consciousness of the flower or with the purity of the flower. Today it is imagination, but if you continue imagining for five days, or ten days, or a month or two, then you are bound to see and feel the flower within you. First you may feel it, then you are bound to see the existence of the flower, and then automatically the fragrance and the purity of the flower will enter into you to purify you. ”