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As per the existing karma, etc.
(47) That effort will not work. Just as in a war, to conquer a strong fort, a strong weapon must be used to make a heavy attack (Mass attack), so to conquer the knot-like impenetrable fortress, an unprecedented self-effort-like feeling-weight must be used to make a strong attack. Otherwise, there will be failure in it, that is, one has to "retreat" from the knot.
The knot is in the first gunasthana, its penetration and moving forward to the fourth, the worldly one, has not been reached. Some beings, by destroying their karma, come with a high feeling, thinking of getting out of the first, come close to the knot-breaking. There, the knot's strength becomes so much on him that he becomes slack in breaking the knot, stops and returns accordingly. In this way, the being has come close to the knot-breaking and has returned. Some beings, by strong self-effort, awaken the causal factors, make a strong effort, break the knot, and move forward, and when they break the knot and move forward, they come to the fourth, and when they come to the fourth, they will be liberated sooner or later, such an impression is received by that being.
-Shrimad Rajchandra also, when the being is in the last pudgala, and even in that, the feeling-mal becomes extremely thin, then the glorious being gets the last yathapravrittakaran, and
he comes very close to the knot-breaking. Then, with the unprecedented self-effort feeling becoming excited, with the unprecedented self-effort's enthusiasm, the unprecedented karman gets the anivrittikaran, anivrittikaran's attainment, unprecedented karman. So, in the beginningless time,
never attained before, that unprecedented self-result and samyaktv's attainment will not be left behind - will not be reversed, that anivrittikaran, from the unprecedented karman, the knot-breaking happens, and from the anivrittikaran, samyaktv happens.
In it, as long as there is a knot, as long as there is yathapravrittakaran, there is unprecedented karman in breaking - violating the knot, and when the being breaks the knot and faces samyaktv, there is anivrittikaran. (Verse-2). This knot is extremely impenetrable - a very hard knot to break. Like a knot of bamboo, which is harsh, dense, rigid and deep, is difficult to break, so the being's deep knot of attachment-aversion result is very difficult. (Verse-3). Therefore, to break it, the being must make unprecedented self-effort. All this will be understood from the figure -
Figure-1
Unprecedented karman! Yathapravrittakaran
-> Anivrittikaran > Samyaktv Knot-breaking