one final vehicle - Thubten Chodron

The belief that all beings—even śrāvakas who have become arhats—will eventually enter the Mahāyāna and become buddhas.

Samsara, Nirvana, and Buddha nature
An overview of "Samsara, Nirvana, and Buddha Nature," Volume 3 of The Library of Wisdom and Compassion book series.
70 Topics: Knower of paths
Overview of chapter 2, knower of paths, and its first four topics.
Arya disposition and Buddha nature
Describing the arya dispositions according to different tenet systems, from the sections "Ārya Disposition according to the Vaibhāṣikas and Sautrāntikas" and "Buddha Nature according to the Cittamātra School" from Chapter 13, "Buddha Nature"
Taking-and-giving meditation
An overview of how to do the taking and giving meditation.