Without the complete determination to be free from circling, there is no way to pacify attachment seeking pleasurable effects in the ocean of circling. Also, by craving for cyclic existence, embodied beings are continuously bound. Therefore, at the very beginning seek the determination to be free.
— Lama Tsongkhapa
Self-clinging is the source of all our problems. It is the basic ignorance from which all the disturbing emotions start. If there is a self, then there are others, and if there is a self and others, there is attachment to the self and anger towards others. This situation creates the basic three disturbing emotions, which are desire, anger, and ignorance. From these three arise others, such as jealousy, pride, miserliness, etc. Once these disturbing emotions are present, they soon develop into physical, verbal and mental actions. When we perform such actions, it is like planting a seed which leads to the growth of suffering.
— HH Sakya Trizin
For a practioner of love and compassion, an enemy is one of the most important teachers. Without an enemy you cannot practice tolerance, and without tolerance you cannot build a sound basis of compassion. So in order to practice compassion, you should have an enemy. When you face your enemy who is going to hurt you, that is the real time to practice tolerance. Therefore an enemy is the cause of the practice of tolerance; tolerance is the effect or result of an enemy. So those are cause and effect. As is said, “Once something has the relationship of arising from that thing, one cannot consider that thing from which it arises as a harmer; rather it assists the production of the effect.”
The mind, deluded by the appearance of samsara, sees the faults of others with the senses. It is darkened by the prison of samsara; it is made intolerable by the fire of samsara; it is caught in the spider web of samsara; it is stuck in samsara as the bee is in nectar; it is encased in samsara like a silkworm in a cocoon. There is no substance to the hollow tree of samsara. Samsara is like the moon’s reflection in water, without essence; samsara is like an animal chasing a mirage; he who desires samsara falls into a pit. Samsara is like being trapped in the jaws of a crocodile; samsara is like wandering in the land of the rakshas; samsara is like a poisonous snake which destroys anyone who sees or touches it; samsara is bordered by the precipice of karma; samsara is like a wave in water, or fog; samsara is tied by the lasso of karma; samsara is bound by the seal of karma; samsara is the density of darkness; samsara is the deep mud of the three poisons; samsara is the dance of impermanence; samsara is the enchantment of this life; samsara is the shadow of birth and death; samsara is a merciless hunter; samsara is snared by the hound of death; samsara is a vast, sorrowful field of grasping and fixation; samsara is the galloping horse of the eight worldly dharmas; samsara is caught by the iron hook of desire; why should I not search for the Lama while I have this precious, impermanent body?
As there is nothing on which to meditate, bring nothing to mind. Do not contaminate the primordial, natural state of ordinary consciousness with structured objects, for the mind that is inherently pure is in no need of modification.
— Mahasiddha Saraha
Buddhism & Science Symposium III – Taste Of Insight Meditation By Ven. Chuan Guan