大毘盧遮那成佛經疏 2.57

2.57

The twenty-eighth: "What is the wildcat mind? It is following practice by advancing slowly." This is like a wildcat stalking birds: it holds its breath and remains still, not rushing to advance quickly, waiting until they are within reach before seizing them. This person is also like this: upon encountering and hearing various essential teachings, they only accept and retain them mentally without advancing, hoping to wait for favorable conditions to align, whereupon they would vigorously and zealously practice them. Moreover, it is like a wildcat, which, even when receiving all kinds of loving care, does not recognize its share of gratitude. If someone merely receives the kindness and wholesome words of others without thinking of repaying them, this is the wildcat mind. Not waiting for a specific time and place, putting teachings into practice as soon as they are heard, and constantly recollecting kindness and virtue serves as its antidote.