When you enter in the state of energy, and leave your individual state (you have not to enter in the state of energy for always), you have to throw off the individual state and enter in the energy to enter in the universal state in the end. Because unless you ignore, [throw] off, your individuality, universality will not rise, universality won’t take place.
So you have to enter in the state of energy first, śakti avasthā praviṣṭasya; then afterwards yadā nirvibhāgena bhāvanā bhavet, when you feel that undifferentiatedness comes in your consciousness–undifferentiatedness between energy and the holder of energy–tadāsau śivarūpī syāt, at that very moment, this sādhaka, this bhāvanā [contemplation] becomes one with Lord Śiva.
So the path is Śakti; the path is not Śiva (śaivī means Śakti). Energy is mukham, the path is, iha, here,ucyate, explained. Energy is the real path you have to tread.
O dear Pārvatī, just like with the light of your candle or torch, dīspasya ālokena, by the light of your torch or candle, or by the rays of the sun, all the differentiated points of deśa, space, are known, are understood, in the same way Śiva is being understood by Śakti, by his energy. Energy is the means by which you can understand and enter in the state of Lord Śiva.
37. The sense here is that this sadhaka (the aspirant) through contemplation with one-pointed awareness (bhavana) becomes one with Lord Shiva (Bhairava). [Editor's note]