We use a loop to loop connection to attach our line. One loop is formed by the lillian; the other loop is from the braided line that we use when fishing with a Tenkara rod.
When we use a level line, we attach a 10″-12″ piece of monofilament line to the level line with a nail knot, and then form a loop on the other end of the monofilament using a perfection loop knot.
To better illustrate the loop to loop connection, we have posted a video below.
Do check it out!