According to Guo Luming's words, opening meridians is a complex and perilous act that can easily result in fundamental damage if not done carefully.
This is because the opening of meridians must be done successfully in one go. If you fail due to insufficient accumulated strength midway, not only will all previous efforts be wasted, but the Dantian True Power you've painstakingly accumulated will be largely lost.
Describing the process of opening meridians as being akin to firing an arrow without retreat is quite fitting.
So generally, when martial artists open their meridians, they invite a master or experienced person to help assess the situation and assist, to reduce risks.
Moreover, the larger sects behave similarly; it's only those self-taught martial artists who, when forced, attempt the risks themselves.
