Luang Por Glan was the abbot of Wat Prayat in Ayuttaya, and the Kroo Ba Ajarn of the Great Luang Por An, who followed Luang Por Glan succeding him as abbot of Wat Prayat after his passing, and who was also a Great Master of Olden Days whose amulets were immensely famous during the Wartime Era, for their Kong Grapan Chadtri Klaew Klaad power. Luang Por An inherited and learned most of his Wicha from Luang Por Glan, who is seen as one of the top most powerful Masters of his Era.

The top ten Masters who were bestowed with the honor at the end of the 2452 BE test of magic which was performed in all grandeur, when all the most powerful masters from around the country were invited to come and have their powers and knowledge of Wicha tested. This was done to find out who were the current Grand Master Adepts in that time. These Top 10 Masters who won were the following; Luang Por Glan (Wat Prayat), Luang Phu Bun (Wat Klang Bang Gaew), Luang Phu Sukh ( Wat Pak Klong Makham Tao), Luang Phu Iam (Wat Hnang), Luang Por Ngern (Wat Bang Klan), Luang Por Ta (Wat Paniang Dtaek), Luang Por Tong (Wat Khao Gop Twa Sri), Luang Por Parn (Wat Bang Hia), Luang Phu Yim (Wat Nong Bua), and Luang Por Jon (Wat Don Ruab).

The amulets of Luang Por Glan are highly regarded for their magical powers and the many miracles which have occurred with devotees who wore his amulets. They dwell within the annals of the Pra Niyom Master-Class Category, with the more highly preferred models such as the Rian Luang Por Glan 2467 BE Monk Coin, of which a top Ongk Kroo model has been already documented in Thai News as having been auctioned for a sum of 20 Million Thai Baht (more than half a million dollars at the time).