For odd numbers, no. 3 indicates multiples. In Buddhist culture, it represents Buddha, Dharma and Bonze, so people toll the bell three times to worship Buddha and pray for the removal of calamities with 3 sticks of incense. Whilst no.7 implies holiness and mystery in Buddhism, it is lucky as well. So, there are seven-storied Stupas everywhere. No. 9 in Chinese culture means longevity and eternality. Thus, there were 9,999 rooms within the Forbidden City in Beijing. It is also a tradition between lovers to send 99, or 999 roses, which carry the best wishes for 'everlasting love'.