Chapter Two, “Expedients,” is one of the most important in the Lotus Sutra. It clarifies the fundamental ideas of the “provisional Imprinted Traces,” or first half of the sutra. What are these fundamental ideas?

It is widely known that the Lotus Sutra contains the authentic teaching of the Buddha, or the long-awaited final Dharma—the law which underlies all other laws. Prior to the emergence of the Lotus Sutra, a variety of sutras were preached as means or expedients to lead living beings to enlightenment. This chapter also begins with expedients, suggesting that such expedients and the true teaching cannot be separated from each other. They are closely related, and should be considered as parts of one whole.

The first half of the Lotus Sutra (Shakumon) expounds the teaching of the One Vehicle. The several schools of Buddhism, which are divided roughly into three types (Sravaka-Vehicle, Pratyekabuddha-Vehicle, and Bodhisattva-Vehicle), are unified in the one single teaching of the One Vehicle. Since the number three represents all the various Buddhist Teachings, “three” here implies “many” or “all.”

[W]e all live in a world of relativity. We cannot ignore the fact that different opinions and different understandings of the world have always existed. According to the Lotus Sutra, this diversity of opinions should be appreciated and understood as valid steps we are taking on the road to the human ideal of the ultimate truth and ultimate value. For example, we often see conflicting theories in scientific research programs. Since each theory has good reasons behind it, it may be called a truth at that particular stage. But these various hypotheses must lie within the process leading to that truth.

The teaching of the Lotus Sutra, which leads all beings without exception to Buddhahood, is the most highly exalted manifestation of the spirit of the Great Vehicle. It strives to benefit all living beings and leave behind no exceptions. This fundamental principle is clearly expounded in Chapter 2.

The Great Vehicle … teaches that there is only one true and perfect enlightenment, that of the Buddha. Anyone who achieves it becomes a Buddha, too. The Lotus Sutra teaches that everyone – whether they be “hearers,” “private Buddhas,” or Bodhisattvas – can attain true perfect enlightenment and become Buddhas. This perfect enlightenment of the Buddha is called anuttara-samyak-sambodhi.

A key idea of the Lotus Sutra is that the three separate vehicles of “hearers,” “private Buddhas,” and Bodhisattvas are united in One Vehicle, the Buddha Vehicle.

The studies conducted over so many centuries made possible a deeper understanding of the Lotus Sutra, and methodological standards for its interpretation were established. One example is called Kamon. It is a classification of the twenty-eight chapters into several sets for a systematic explanation of their meaning.

The major Kamon is the “Three Parts of Each of the Two Divisions of the Lotus Sutra” which was established by Great Master Chih-i. Most commentators since his time have accepted his guidelines. …

[T]he “Three Parts of Each of the Two Divisions of the Lotus Sutra” refers to the division of the Sutra into two main sections: the first half, consisting of Chapters One through Fourteen, and the second half, consisting of Chapters Fifteen through Twenty-eight. Kamon gives a detailed explanation of the reason for this division. The first half is named Shakumon, literally “imprinted gate.” Its main purpose is to teach how “hearers” and Pratyekabuddhas can attain Buddhahood in the One Vehicle. The second half is called Hommon, which means “Primal Gate” or “Primal Mystery.” This part reveals Sakyamuni to be the infinite, absolute Buddha, the Buddha who attained enlightenment in the remotest past but still leads living beings in the present. These two points are considered the fundamental ideas of the Lotus Sutra.

The Lesser Vehicle of the “Sravaka” and “Pratyekabuddha” drew a sharp line between this world of sufferings and the pure world of spirit. Its followers renounced worldly concerns, devoted their lives to religious austerities, and made every effort to attain absolute tranquility. This made for a two-dimensional world view, esteeming the pure world of spirit and devaluating the everyday world in which we live.

Bodhisattvas, on the other hand, saw the two worlds as one. They saw this world as the center stage for their religious practice, and preached that spiritual enlightenment must be realized in our life in this world. In short, the Bodhisattva’s mission to deliver people from suffering is to be accomplished in this world of sufferings.

Notwithstanding the Buddha’s efforts, people failed to realize that the expedients they had been taught were only part of the vast and profound truth attained by their master. Gradually they divided into different schools or sects clustered around a particular teaching which they believed to be the ultimate. During his fifty-year teaching Sakyamuni had employed a wide variety of expedients. His disciples, who scattered far and wide, noticed that they had received different teachings. They began to argue among each other about which teachings and practices were the more correct.

To solve these disputes, Sakyamuni introduced the Lotus Sutra – his ultimate teaching. Its first purpose was to break the attachments his disciples had formed to their own particular ideas. That is, Sakyamuni proclaimed that all he had previously taught were only expedients. They were partial truths, not the whole. They were separate “Vehicles.” Now they must be unified into One Vehicle, the Buddha Vehicle. This concept of the One Vehicle is the central thought of the Lotus Sutra and the chief idea presented in this chapter.