Enlightenment (realization) means that both the mind consciousness and the manas have discovered the truth and the facts. The truth is the object-aspect; the discovery is the perceiving-aspect; discovering the truth is self-cognition (svasaṃvitti), not self-validating cognition (sva-saṃvitti-saṃvitti-bhāga).
Whether one can attain enlightenment also depends on the wisdom and cognitive capacity of the manas itself, and on whether or not the manas has deeply entrenched wrong views (mithyā-dṛṣṭi) accumulated over beginningless kalpas—not merely on the mind consciousness's ability to gather evidence and data, and to analyze and deliberate.
When the manas's habit of greed manifests, it must be expressed through the six consciousnesses. Sometimes the mind consciousness has awareness and will resist, though it may not necessarily succeed in resisting; sometimes the mind consciousness lacks awareness and does not resist.
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