Critiques of Śaṅkarācārya’s Advaita Vedānta often begin with its understanding of the world as māyā, or only provisionally real. Opponents from schools such as Nyāya, Mīmāṁsā, and later dualistic Vedānta argued that this view risks undermining ordinary experience, ethical action, and the authority of Vedic injunctions. If the world is ultimately not real in the highest sense, then duties, rituals, and even moral responsibility can appear to lose their ultimate grounding. Some critics went so far as to suggest that such a stance tends toward world‑negation or a kind of nihilism, making sustained engagement with social and ritual life seem spiritually secondary or even misguided.

A second major line of criticism concerns the status of the individual soul and of a personal God. Dualistic and qualified non‑dualistic Vedāntins contended that Advaita’s assertion of the identity of ātman and Brahman dissolves the genuine distinctness of individual selves. For them, this raised worries about the meaningfulness of sin, merit, grace, and the soul’s real journey. Relatedly, Śaṅkara’s treatment of Īśvara as ultimately subordinate to the impersonal, nirguṇa Brahman was seen as diminishing the reality of divine attributes and the centrality of devotion. From such perspectives, the strong emphasis on jñāna as the direct means to liberation seemed to relegate bhakti and personal relationship with God to a lower, merely provisional standpoint.

Further objections focused on Advaita’s account of ignorance (avidyā) and its scriptural hermeneutics. Philosophers from logical traditions questioned how ignorance can arise or persist if Brahman alone is real and is pure consciousness, and they pressed the issue of where such ignorance could reside without compromising Brahman’s perfection. Others challenged the ontological status of māyā itself, arguing that it appears caught between being real and unreal in a way that strains coherence. In the realm of scripture, critics claimed that Śaṅkara selectively privileged non‑dual “mahāvākyas” while downplaying passages that speak of real difference between God, soul, and world, thereby reading a strict non‑dualism into texts that could support alternative interpretations.

Finally, there were more practical and experiential criticisms. Some held that the subtle and highly abstract nature of Advaita’s teaching, along with its rigorous qualifications for the aspirant, makes liberation seem accessible only to a small class of renunciant intellectuals rather than to ordinary householders. Others worried that if all is ultimately one undifferentiated reality, moral distinctions might be treated as merely relative, encouraging a lax attitude toward ethical norms. From devotional and theistic standpoints, this entire complex of concerns sometimes led to the charge that Advaita resembles a “crypto‑Buddhist” position, emptying ultimate reality of concrete attributes and thereby standing at odds with the richly personal and relational spirituality cherished in many other Hindu traditions.