We can conclude the reasons for LoiKrathong in Thailand that
To ask for forgiveness Pra Mae Khongkha because we use and drink water. Moreover, we often throw rubbishes and excrete wasted things in the water.
To worship the foot-print of the Buddha on Nammathanati River beach in India.
To fly away misfortune and bad things like floating sin- Bhrama ceremony.
To pay respect to Uppakhud whom mostly northern villagers show their gratitude for.