The ten subtleties of “traces” are: Subtlety of Objects; Subtlety of Wisdom; Subtlety of Practice; Subtlety of Stages; Subtlety of Threefold Dharmas; Subtlety of Empathy and Response; Subtlety of Supranormal Powers; Subtlety of Preaching the Dharma; Subtlety of Attendants; and Subtlety of Merit and Benefit….
For scriptural proof I will quote only passages from the first half of the Lotus Sūtra and not even passages from the second half of the Lotus Sūtra. Why should I quote other Sūtras?
The Lotus Sūtra says concerning the such-like appearances and so forth of all dharmas that “the true aspects of reality are exhaustively understood only by the Buddhas.”341 The “true aspects of reality” is the gate by which to enter the wisdom of the Buddha. This gate is objective reality. It also says, “This exceedingly profound and minutely subtle dharma is difficult to perceive and hard to understand. Only I and the Buddhas of the ten directions can know these aspects.”342 This refers to subtle objects.
“The wisdom which I have attained is minutely subtle and most supreme.”343 Also, “With this subtle wisdom I seek the supreme path.”344 and “The dharma which is undefiled, beyond conceptualization, exceedingly profound, and minutely subtle is known in its [true] aspect only by me.”345 This refers to subtle wisdom.
“Originally, by following incalculable Buddhas he [the Buddha Śākyamuni] practiced all paths. … After practicing all of these paths, he attained his fruit [of Buddhahood] at the seat of enlightenment.”346 Also, “They pressed their palms together and with a respectful mind desired to hear of the completed path.”347 Also, “All dharmas from the beginning are characterized as eternally quiescent in themselves. Sons of the Buddha attain Buddhahood in the future by completing the practices of the path.”348 This refers to subtle practice.
Four kinds of flowers fell from heaven,349 manifesting the four [bodhisattva] stages of Abodes, Practice, Merit Transference, and bhūmi. The exposing, revealing, awakening, and entering [the Buddha’s knowledge and insight]350 also refers to the meaning of the levels [of attainment]. “To ride on the jeweled vehicle and course in the four directions;”351 The four directions are the four causal stages [leading to Buddhahood]. The “direct attainment of the seat of enlightenment” refers to the level of resultant [Buddhahood]. This refers to subtle stages.
“The Buddha himself dwells in the Great Vehicle; it is adorned with the power of wisdom and concentration which he has attained.”352 The “Great Vehicle” [Mahāyāna] refers to the true nature of [reality];353 “concentration” refers to the perfection of one’s potential;354 “wisdom” refers to enlightened concentration355 This refers to the subtle threefold dharmas.
“In the span of three weeks I considered these matters.”356 Also, “I, with the Buddha-eye, have penetrating insight into the six destinies of sentient beings.”357 Also, “All sentient beings are my sons.”358 Also, “He saw in the distance his father sitting on the Lion’s Throne.”359 This refers to subtle empathy and response.
“Now, the Buddha-Bhagavan entered samādhi and manifested strange and inconceivable signs.”360 This refers to subtle supranormal powers.
“The Tathagata can skillfully discriminate and preach the dharma; with gentle words he makes joyful the minds of sentient beings.”361 Śāriputra said, “On hearing the Buddha’s gentle words which are profound, far removed [from ordinary understanding], and minutely subtle…”362 Also, “All of the dharmas which he expounds without exception reach the ground of omniscience.”363 Also, “He expounds only the supreme path.”364 Also, “[Among Sūtras] already, now, or to be preached, [this Lotus Sūtra] is the most difficult to believe and understand.365 This refers to subtle preaching of the Dharma. “He teaches only bodhisattvas, and has no śrāvaka as disciples.”366 This refers to the subtle attendants [of the Buddha].
“In the present or future, anyone who hears one stanza or one verse will attain perfect awakening.”367 Also, “Anyone who hears [the preaching of the Lotus Sūtra] can attain ultimate perfect awakening.”368 Also, “If I try to save [sentient beings] through the small vehicle, I would have fallen victim to greed. This cannot be excused.”369 Also, “Finally, there is no one who is allowed to attain salvation for himself alone; all attain salvation through the salvation of the Tathāgata.”370 This refers to subtle benefits.