• The statement you’re asking about points to the 14th Gunasthana, which in Jainism is known as Ayogi-kevali (omniscience without activity). In this final stage the soul has achieved kevala jnana and is on the verge of liberation; its outward activity drops to almost nothing. This is the conventional position in both Digambara and Śvetāmbara traditions, with only minor wording/label differences in some texts. (14 Gunasthānas; Sayogī-kevalī and Ayogī-kevalī are the last two stages; the 14th is Ayogī-kevalī.) ( jainknowledge.com)

• On the specific points you named:

- Manushya gati (human birth) and asiddhatva (state of not yet attaining full siddhi) are descriptions that appear in discussions of the later Gunasthānas, especially as the soul approaches the final stages. In standard lists, the higher Gunasthānas (13 and 14) describe omniscience with activity (Sayogī-kevali) and omniscience without activity (Ayogī-kevali), which correspond to a purified, liberated or nearly liberated state rather than ordinary worldly birth. The primary canonical framing places the ultimate, liberated condition at the 14th Gunasthana. ( jainknowledge.com) - Kshukla leshya bhav (white color leshya) is the highest (pure) leshya category used to denote a state of near-purity free from karmic taint, which is associated with the later Gunasthānas and especially with the leśyā concepts discussed in Jain texts like Tattvartha Sūtra. Different Jain traditions may name or describe the exact mapping of leshya colors to Gunasthānas with slight variation, but the white leshya is commonly linked to very high purification near the end of the Gunasthāna ladder. ( jainknowledge.com)

• In short: the standard, widely accepted Jain position is that the 14th Gunasthana is Ayogī-kevali (omniscience without activity), the stage at which the soul is in a purified, liberated state. If you want a compact description of each Gunasthāna with simple arth (meanings) in the Digambar and Śvetāmbara context, the linked Jain Knowledge pages provide clear outlines:

- 14 gunsthanak art: simple meanings for the 14 stages. - Gunstanak and its types: overview of the 14 stages with concise explanations. - Gun sthan ke naam digambar: Digambar-friendly listing of the 14 stages.

If you’d like, I can provide the exact Sanskrit names and a brief arth for each Gunasthāna as they appear in Digambar and Śvetāmbara traditions.