svakarakuca nyāyaḥ (touching one's breasts with one's own hands)
A woman, which is trying to pursue pleasure, by rubbing her breasts with her own hands, will not succeed because that is not the way.
This is exactly how the inhabitants of this material domain think, “I am the enjoyer. There is no God. Everything has to be according to my plan. I am in control. I create, maintain, and destroy according to my will. I do everything myself, and whatever I set as knowledge, and whatever I invent is as good as real. I am a god, and everything is god.” This is the unfortunate state of god-pretending living entities, the same misery the lonely woman suffers.
The woman's enjoyment is when she is touched by a man. Living entities' happiness is in touch with God. That is the birthright of every soul. Ānanda-mayo 'bhyāsāt (Vedānta-sūtra 1.1.12)
Specifically, there are two categories of unfortunate living entities, who conceive to create enjoyment by themselves. Most of the conditioned souls fall into karma-kāṇḍa section. They dream of increasing their happiness by their work power, to be elevated to a better, and more comfortable status of life, and ultimately get to the heavenly kingdom, with much greater standards of enjoyment. The other group, less frequented, is termed as jñāna-kāṇḍa. They are actually dropouts from the first group. They rely on the speculative power of their brains, to get spiritual happiness, as they figured out that material happiness, after which karmīs work very hard, is much much lesser. They generally call it ānanda. Sometimes the practitioners of these two groups take help from God Himself, and form some kind of diluted religious system, just to make their ends meet. But in no way it can be said that it is a true religion, id est to unconditionally enjoy the company of Śrī Kṛṣṇa, Supremely Personal Godhead, in the same manner, the woman is missing the true man to enjoy herself in his company.