This is a very helpful point from Lahiri is to train the mind to remember higher states even though they come in flashes.

One of the main challenges during breath infusion practice that I have is, certain old buried thoughts hidden in my trunk, thighs or brain starts coming out. Especially during certain asanas stretching body parts, certain old unpleasant thoughts or memories rise (like buoyancy) all the way up to the skull and knocks you down that you have to take a pause for 5-10 minutes to deal with it. The body freezes to counter them.

Also the other way, certain deep thoughts arise from the head, and during breath infusion, it goes and hides in certain parts of the body like thighs, shoulders, chests like pockets to store them. Maybe they will rise again and hit the head. This is less traumatic than the former described. It feels good when these thoughts are moved away from the head to the lower parts of the body but still confronting these old unpleasant thoughts inside the head is traumatic.

These traumatic thoughts discourage one from doing the practice because of the fear of "Oh, I don't know what hidden traumatic thoughts gonna come today" and as a human tendency, we try to avoid pain and trauma in every form. Slowly we start to identify the breath infusion practice to traumatic thoughts than higher experience.

 "Holding onto flash of higher experience to counter several traumatic thoughts" is a good strategy to slowly turn the tables on bad thoughts and to identify the practice to higher experience.