2 Accumulations: merit and wisdom.
2 Attachments: instinctive attachments, attachments based on reasoning.
2 Gates of Meaning: the Absolute (silence), the Relative (speech).
2 Hindrances to Enlightenment: hindrance of knowledge, hindrance of passion.
2 Obscurations: negative emotions and conceptual obscurations.
2 Truths: conventional truth and ultimate truth.
2 Types of Meditation: calm-abiding meditation (samatha) and analytical meditation (vipassana).
2 Principals of Karmic Retribution: good and evil deeds produce happiness and suffering, results return to none other than the performer of the deeds.
2 Vehicles towards Enlightenment: Buddhist disciples, self-enlightened sages.