You can't hold it for a little while. Never inhale too much, otherwise it is not easy to induce fetal interest. Wait quietly. Abdominal ups and downs centered on navel caused by congenital vitality. Hold your breath according to your physical condition. Breathe out if you can't hold it. Breath-holding method often stops the work of the acquired energy supply system of the human body when it feels "suffocating to death". Due to physiological needs, the idle innate energy system is started immediately to replace the acquired energy supply system of the human body to supply energy to the human body and supplement the acquired energy.
The abdomen centered on the navel suddenly rises and falls, which is very powerful. At this time, the fetal interest has already begun. After starting fetal interest, use natural breathing, and consciousness only needs to feel the ups and downs of the abdomen. Don't add any thoughts or actions, lie quietly and let your abdomen rise and fall naturally.