Pride is a mental factor causing us to feel higher or superior to others. Even our study of dharma can be the occasion for the delusion of pride to arise if we think our understanding is superior to that of everyone else. Pride is harmful because it prevents us from accepting fresh knowledge from a qualified teacher. Just as a pool of water cannot collect on the tip of a mountain, so too a reservoir of understanding cannot be established in a mind falsely elevated by pride.
Contributed by: Ryan