Śivasaṃhitā 5.62

Aharniśam—“day and night”—is the temporal intensity distinguishing the vicakṣaṇa (expert, one of sharp eye) from the ordinary practitioner. Contemplation of the mūlādhāra’s bīja is not limited to the formal meditation session: it penetrates all states of consciousness until becoming the permanent backdrop of experience. This level of integrated practice corresponds to nirantar abhyāsa (practice without intervals) described in earlier verses as the condition of the highest siddhi.

Vicakṣaṇa—“one of sharp vision,” “expert,” from vi-cakṣ (to see clearly)—is not simply one who practices much but one who has developed the perceptive clarity that allows seeing beyond the threshold of ordinary perception. The Siddha (“the accomplished,” “the perfected”) are masters who have completed the yoga process and whose presence is accessible from certain expanded states of consciousness. That the practitioner can converse with them (saṃvāda) indicates real communication, not merely passive vision.

The phenomenon of seeing the Siddha during meditative practice appears in multiple contemplative traditions: the dākinī of Vajrayāna Buddhism, the angels of Abrahamic traditions, the Invisibles of Sufism. In the Śivasaṃhitā’s context, this is not poetic metaphor but description of a perceptive capacity that naturally develops with sustained practice of mūlādhāra contemplation. Transmission of knowledge from deep meditative states is considered a valid source of knowledge in tantric epistemology.