\The other thing that seems to be stressed for Asalha Puja and Khao Pansaa is offering robes to monks. For the past 25 years that I am aware of robe cloth has traditionally been offered at Kathina after Auk Pansaa. Pansaa, by the way is the Buddhist rains retreat, not Lent. Calling it Buddhist Lent is a bit like telling someone that their fater looks a lot like them. Buddhism predates Christianity. Si it might be fair to call Lent Chistian Pansaa.
Back to robes most monks in Thailand no longer know how to sew their own robes and they are store bought. In the Forest Wats, Kammathana Dhutanga Wats Bhikkhus are offered cloth, which they dye and cut an sew into robes. In Buddhist Temples Kathina is the time for offering requisites. Asalha Puja the day before Pansaa is usually the dat that samana receive full ordination and, or Pakaow receive samana ordination.